#help-with-arduino

1 messages · Page 107 of 1

leaden walrus
#

and just change the #def lines

#

yah, don't use 13. the sketch uses the LED, so will take that pin.

# 
  pinMode(LED_BUILTIN, OUTPUT);
violet shell
#

I've used pin 6

leaden walrus
#

comment out that line

#

leave the other as is, with &Wire

violet shell
#

when I do that later on in the code it says that dev_I2c isn't declared

leaden walrus
#

ok. different way. put this line back to:

LSM6DSLSensor AccGyr(&dev_i2c, LSM6DSL_ACC_GYRO_I2C_ADDRESS_LOW);
#

leave the other commented out but add this new line:

//TwoWire dev_i2c(I2C2_SDA, I2C2_SCL);
#define dev_i2c Wire
# 
// Components.
//TwoWire dev_i2c(I2C2_SDA, I2C2_SCL);
#define dev_i2c Wire
LSM6DSLSensor AccGyr(&dev_i2c, LSM6DSL_ACC_GYRO_I2C_ADDRESS_LOW);
violet shell
#

ok so the code has managed to upload to the feather but nothing comes up in the serial monitor

leaden walrus
#

looks like it only prints something if tilt is detected

# 
  // Initialize serial for output.
  SerialPort.begin(9600);
  while (!SerialPort);
  SerialPort.println("Tilt Test");
#

can do something like that to wait for serial monitor to open and print a start message

violet shell
#

only prints out tilt test into the serial moitor

#

so the code i am trying to get is to tell me the acceleration and tilt direction, then store this data into a csv file with more data from other components as well

#

would it be easier to send the code i have so far for the bmp280 that i am using?

#

and the data that it reads gets stored to the sd card?

leaden walrus
#

not really. if thats working then it should be fine.

#

looks more like a basic data dump

violet shell
#

ok will try the first link you kindly sent over

#

ok so i used the code from the first link but comes up with this message,

unknown.png
rough torrent
#

I would still try to upload it
If it doesn't work, then you will have to use a different board that uses one of the architectures supported by the library or a different library that supports your architecture

violet shell
#

ok so i've uploaded the code now but doesn't give me the values in the serial monitor

#

it just outputs all as 0

rough torrent
#

Sounds like a failure to read from I2C bus or you didn't set up the device correctly

violet shell
rough torrent
#

Anything other than just plain 0s printed?

#

Like a warning?

violet shell
#

shall i send a photo of how i've connected the component to the board

rough torrent
#

(I don't have full context of your previous conversation with cater)

#

Sure

violet shell
#

this is from the serial monitor

unknown.png
rough torrent
#

Try the Adafruit library?

#

Does the device / feather have pullups? I don't think featheres come with pull ups for the I2C bus

violet shell
violet shell
rough torrent
# violet shell which file would i use instead?

Install the Adafruit_LSM6DS library in the library manager for Arduino IDE
Then open examples and find the example for that library
You should scan through the code to make sure there are no pin definitions you need to change, then upload

violet shell
#

do i open the .h or the .cpp version for the LSM6DSL?

rough torrent
rough torrent
violet shell
#

ahh ok

#

it's version 4.3.1 that i've downloaded

rough torrent
#

don't think it particularly matters, but latest version is always good

#

then choose an example

unknown.png
#

seems like there are different examples for different variations

#

Probably want to try the sketches ending in "test"

violet shell
#

will these still work if my component is LSM6DSL but the test code is for the LSM6DS33

rough torrent
#

I'm not sure, I'm not familiar with the component

#

You might want to try all of the test sketches :/

rough torrent
#

Actually can you send the example with the modifications cater suggested?

violet shell
#

yh sure

rough torrent
#

Thanks

#

(brb)

violet shell
#

// Includes.
#include <LSM6DSLSensor.h>
#define SerialPort Serial
#define I2C2_SCL SCL
#define I2C2_SDA SDA

// Components.
//TwoWire dev_i2c(I2C2_SDA, I2C2_SCL);
#define dev_i2c Wire
LSM6DSLSensor AccGyr(&dev_i2c, LSM6DSL_ACC_GYRO_I2C_ADDRESS_LOW);

void setup() {
// Led.
pinMode(LED_BUILTIN, OUTPUT);
// Initialize serial for output.
SerialPort.begin(9600);

// Initialize I2C bus.
dev_i2c.begin();

// Initlialize components.
AccGyr.begin();
AccGyr.Enable_X();
AccGyr.Enable_G();
}

void loop() {
// Led blinking.
digitalWrite(LED_BUILTIN, HIGH);
delay(250);
digitalWrite(LED_BUILTIN, LOW);
delay(250);

// Read accelerometer and gyroscope.
int32_t accelerometer[3];
int32_t gyroscope[3];
AccGyr.Get_X_Axes(accelerometer);
AccGyr.Get_G_Axes(gyroscope);

// Output data.
SerialPort.print("Acc[mg]: ");
SerialPort.print(accelerometer[0]);
SerialPort.print(" ");
SerialPort.print(accelerometer[1]);
SerialPort.print(" ");
SerialPort.print(accelerometer[2]);
SerialPort.print(" | Gyr[mdps]: ");
SerialPort.print(gyroscope[0]);
SerialPort.print(" ");
SerialPort.print(gyroscope[1]);
SerialPort.print(" ");
SerialPort.println(gyroscope[2]);
}

this is the code which outputs to the serial monitor but not the actual values

rough torrent
#

It makes it much easier to read

violet shell
#

yh sure

# 
#include <LSM6DSLSensor.h>
#define SerialPort Serial
#define I2C2_SCL    SCL
#define I2C2_SDA    SDA

// Components.
//TwoWire dev_i2c(I2C2_SDA, I2C2_SCL);
#define dev_i2c Wire
LSM6DSLSensor AccGyr(&dev_i2c, LSM6DSL_ACC_GYRO_I2C_ADDRESS_LOW);

void setup() {
  // Led.
  pinMode(LED_BUILTIN, OUTPUT);
  // Initialize serial for output.
  SerialPort.begin(9600);

  // Initialize I2C bus.
  dev_i2c.begin();

  // Initlialize components.
  AccGyr.begin();
  AccGyr.Enable_X();
  AccGyr.Enable_G();
}

void loop() {
  // Led blinking.
  digitalWrite(LED_BUILTIN, HIGH);
  delay(250);
  digitalWrite(LED_BUILTIN, LOW);
  delay(250);

  // Read accelerometer and gyroscope.
  int32_t accelerometer[3];
  int32_t gyroscope[3];
  AccGyr.Get_X_Axes(accelerometer);
  AccGyr.Get_G_Axes(gyroscope);

  // Output data.
  SerialPort.print("Acc[mg]: ");
  SerialPort.print(accelerometer[0]);
  SerialPort.print(" ");
  SerialPort.print(accelerometer[1]);
  SerialPort.print(" ");
  SerialPort.print(accelerometer[2]);
  SerialPort.print(" | Gyr[mdps]: ");
  SerialPort.print(gyroscope[0]);
  SerialPort.print(" ");
  SerialPort.print(gyroscope[1]);
  SerialPort.print(" ");
  SerialPort.println(gyroscope[2]);
}
#

is that better?

rough torrent
#

Yes, thank you!

#

Although you can do:
```arduino
<code>
```
to syntax highlight it

#

(Right now I'm looking at the library)

leaden walrus
#

looks like breakout includes pullups

unknown.png
#

the LSM has two interrupt outputs, but the breakout only maps one at a time to its INT pin, via jumper

#

not sure what STM library ends up using

rough torrent
#

Can you also try replacing this:

// Read accelerometer and gyroscope.
int32_t accelerometer[3];
int32_t gyroscope[3];
AccGyr.Get_X_Axes(accelerometer);
AccGyr.Get_G_Axes(gyroscope);

with something like this? (untested and may not compile)

// Read accelerometer and gyroscope.
int32_t accelerometer[3];
int32_t gyroscope[3];
LSM6DSLStatusTypeDef result = AccGyr.Get_X_Axes(accelerometer);
SerialPort.print("Get X axes result: "); Serial.println(result);
result = AccGyr.Get_G_Axes(gyroscope);
SerialPort.print("Get G axes result: "); Serial.println(result);

What does the serial monitor say then?

leaden walrus
#

^^ yep. keep trying the basic print example. without interrupts tie in.

rough torrent
#

(I'm not sure if that's the correct syntax, C isn't my strong suit lol)

leaden walrus
#

the STM example is #def the serial port for some reason

rough torrent
#

Oh yea

#

Let me fix that

leaden walrus
#

so code needs to be SerialPort.print etc

violet shell
#

this is what the monitor comes out with

unknown.png
rough torrent
#

That looks like it's happy with reading the results, as LSM6DSL_STATUS_OK = 0

#

Hmmmm...

leaden walrus
#

check begin() call return also

rough torrent
#

Yea
So replace

AccGyr.begin();

To:

LSM6DSLStatusTypeDef status = AccGyr.begin();
SerialPort.print("Begin status: "); Serial.println(status);
#

And, maybe try something like this?

// Read accelerometer and gyroscope.
int32_t accelerometer[3] = {1, 2, 3};
int32_t gyroscope[3] = {4, 5, 6};
LSM6DSLStatusTypeDef result = AccGyr.Get_X_Axes(accelerometer);
SerialPort.print("Get X axes result: "); Serial.println(result);
result = AccGyr.Get_G_Axes(gyroscope);
SerialPort.print("Get G axes result: "); Serial.println(result);

If it still is 0, then the sensor itself not the library may be returning bad values

violet shell
#

same results of all 0's

rough torrent
#

Hmmmmmmmm, the sensor might not be initialising correctly, or possibly broken?
Also have you ran the I2C bus test to detect address?

#

Sorry, but I gtg - Hopefully you get your sensor to work!
Hopefully you don't end up needing to buy another/different one 🙏
(But if you do end up doing so, Adafruit products are really nice with excellent documentation 😉 )

violet shell
violet shell
sacred ivy
#

This is a general C question thats applicable to arduino, but is char/byte the smallest variable I can use?

north stream
#

You can use bitfields, however.

rough vessel
#

Yeah, that's a yes-or-no question with not quite a yes-or-no answer. It sorta depends on context and why you're asking. Generally speaking, it's a yes. 🙂

sacred ivy
#

It just seems silly to waste a whole byte when I only need set a bit on or off. Im sure theres a way around it

rough vessel
#

Alas, that's often just a cost you have to eat. If you have more than one bit like that, you can always pack them all into a byte and use a bitfield as @north stream mentioned.

#

It's worth keeping in mind that as long as you have memory to spare, it's not being wasted. It might be worth trying to optimize if you run out of space on the device, but until then it's not usually worth the extra effort which can be spent elsewhere.

sacred ivy
#

True.

north stream
#

Back in my PIC days, I used bitfields a lot, but that's because a) the PIC ISA is optimized for bitwise operations, and b) I was programming in assembler.

sacred ivy
quartz furnace
#

Projects on the ESP32 using WiFi to send email. I see google is going to stop allowing "less secure Apps on 5/30/2022. Anyone have a good email service to migrate to? or know of anyother way (note I have used 'Pushover")

#

ahhh, I left out Adafruit IO

#

But just looking for any kinda of notification service.. email.. or push service

elfin thorn
#

Hi y'all! I'm playing around with the TEA5767 I2C board connected via I2C to the Clue.

The sketch is pretty simple:

``// TEA5767 Example

#include <Wire.h>
#include <TEA5767Radio.h>

TEA5767Radio radio = TEA5767Radio();

void setup()
{
Wire.begin();
radio.setFrequency(25.6); // pick your own frequency 25.6, 29.9, 37.8, and 37.9 MHz
}

void loop()
{
}``

But what I want to do is make one of the buttons on the Clue change the frequency. I am utterly Clueless (ha ha) about Arduino, so is there a simple button sketch I can use to do this? Thanks!

wind nexus
#

So im driving a 2amp nema 17 with an Easy motor driver thats rated for 750ma. Is there another driver - library anyone would recommend to make use of the full 2amps?

pine bramble
#

What are called those display without exposed pcbs?

IMG_20220312_211752.jpg
pine bramble
#

Does anyone know how to change waveform in an arduino code for "tone"

north stream
#

I think they're basically square waves, but you can use PWM to change the duty cycle, or analog filtering to change the waveshape. After that, you get to various DAC techniques.

pine bramble
#

Ok thx and how do I do that? Sorry I'm kind new to audio stuff and decent-ish at arduino

north stream
pine bramble
#

Thx, sir?(sorry just trying to use the correct pronouns)

north stream
#

Good point, I probably should add my pronouns (he/him)

pine bramble
#

Ok sir

#

Btw good pfp

#

Right now my main goal is setting up the main 4 wave forms(sine, square, sawtooth, and triangle)

pine bramble
#

How do I do analog filtering

pine bramble
#

How do I change the waveshape, sorry to ask again

pine bramble
#

Also is it possible to make grain/fuzz/dist effects and reverb with arduinos?

#

Again sorry for asking so many questions

north stream
livid osprey
pine bramble
north stream
past beacon
#

I need to know how to take data from a sensor (in my case a Barometer) and compute the data feed to read a specific value and set it in a inequality function. For example, an if or when/else statement that is linked to a servo. When the barometer value exceeds 750 the servo rotates. I don't need help writing just guidance on where to find out more about these types of operations and what they are technically called. Thanks

north stream
pine bramble
past beacon
north stream
past beacon
pine bramble
#

hi all. I have a arduino nano rp2040 connect. I need to use it as a USB host. What should I do to make that work?

#

Accomplishments include: reading a usb device's Device ID, or anything about the device, then eventually work my way to being able to send a Nintendo switch rcm payload.

north stream
pine bramble
#

I'm using this setup at the moment:

8C0B2474-BE5B-492A-AB8A-3CD05DEF76E9.jpg
#

So I want to use the micro USB port... :)

pine bramble
#

okay nevermind 😛 it's C

#

I can attempt to see what fusee gelee ports exist for c.

rough torrent
#

If anyone has any debugging suggestions they would be greatly appreciated

quartz furnace
#

I have a question on how to handle this line of code

#

" esp_err_t result = esp_now_send(broadcastAddress2, (uint8_t *) &myData, sizeof(myData));"

#

I want to do broadcastAddress1 then broadcastAddress2

#

I am getting edeclaration of 'esp_err_t result'

#

how do I loop and pass "address1" then "address2"

#

Also is broadcastAddress* a Char?

#

would I need to declair a Char? then just rename?

#

thinking in a For i loop? and once i = 2 then change and pass it to the line?

north stream
#

You just need to declare your result variable once. I like to do it separately: ```arduino
esp_err_t result;

result = esp_now_send(broadcastAddress1, ...);
// check result
result = esp_now_send(broadcastAddress2, ...);
// check result

quartz furnace
#

Ohhhhhh

north stream
#

If you put your addresses in an array, it's easy enough to loop over them

#

I'm not familiar with the call, so I don't know what type it accepts.

quartz furnace
#

Perfect! Thanks haha tried so many diffent ways like creating a 2nd esp_err_t2 it didn't like that hahaha

north stream
#

You could have two different result variables with different names, but I think it makes more sense to just have one and re-use it.

quartz furnace
#

Compiling

#

🤞

quartz furnace
#

Works well Thanks again 🙂

glacial pond
#

Ugh, I'm sure this has come up before, but this is the first time I've run into it. I'm on macOS Monterey and have python@3.9 3.9.10 installed and up to date (per brew), which is /usr/bin/python3. The Arduino IDE won't compile the blink sketch for my FunHouse. Error is
exec: "python": executable file not found in $PATH

I agree that there is no "python" executable in my path. How do I get it to recognize/use python3?

solemn cliff
glacial pond
solemn cliff
#

oh, is that on M1 by the way ?

glacial pond
#

Nah, Intel

north stream
#

Then after activating that environment, the correct Python will be in my Path.

tired notch
#

Hello im using ssd1351 and adafruit library how can i change the gray scale of my display?

north stream
earnest vortex
#

Hey everyone! I'm making a simple USB clicker using the Digispark ATTiny85 and i've got it working, left clicking on the computer once per button press. However i want it to left click thrice per button press with the ability to control the delay inbetween. Can someone shed some light on how i can go about doing that? My current code looks only like the following:

#include <DigiMouse.h>

void setup () {

//Mouse left click port
pinMode(0, INPUT);

//Begin Mouse mode
DigiMouse.begin();

}

void loop() {

if(digitalRead(0)==LOW)
DigiMouse.setButtons(1<<0); // left click)

if (digitalRead(0) ==HIGH)
DigiMouse.setButtons(0);

DigiMouse.update();
delay(100);

}

leaden walrus
# 
  if(digitalRead(0)==LOW) {
    for (uint8_t i=0; i<3; i++) {
      DigiMouse.setButtons(1<<0); // left click)
      delay(100); // delay in ms
    }
  }
#

does DigiMouse.update(); need to be called to actually send the clicks? not familiar with the library?

earnest vortex
leaden walrus
# 
  // If not using plentiful DigiMouse.delay(), make sure to call
  // DigiMouse.update() at least every 50ms
#

so it wants you to call DigiMouse.delay() on a regular basis

#

and DigiMouse.setButtons(0); is needed for button up

earnest vortex
leaden walrus
# 
  if(digitalRead(0)==LOW) {
    for (uint8_t i=0; i<3; i++) {
      DigiMouse.setButtons(1<<0); // left click
      DigiMouse.delay(500);       // delay in ms
      DigiMouse.setButtons(0);    // unclick all
      DigiMouse.delay(500);       // delay in ms
    }
  }
earnest vortex
earnest vortex
leaden walrus
#

based on my quick read of the library, yes

earnest vortex
#

@leaden walrus Gotcha thanks again for the rescue

heavy onyx
#

I'm trying to make a light-up master sword, and I copied some code from a website that did something similar, but I manipulated it to fit my needs, but then when I hook everything up and plugged it in to test it the lights didn't turn on.

#

this is the code I have

# 
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
  #include <avr/power.h>
#endif

#define PIN            4

// Color Segments
#define BPIXELS      30 // number of blue pixels

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(93, PIN, NEO_GRB + NEO_KHZ800);

int delayval = 10; // delay for half a second

void setup() {
#if defined (__AVR_ATtiny85__)
  if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
#endif

  pixels.begin(); // This initializes the NeoPixel library.
}

void loop() {

  for(int i=0;i<BPIXELS;i++){
    pixels.setPixelColor(i, pixels.Color(0,250,200)); // Set Pixels to Blue Color
    pixels.show(); // This sends the updated pixel color to the hardware.
    delay(delayval); // Delay for a period of time (in milliseconds).

  }
}
heavy onyx
#

?

heavy onyx
#

Anyone?

north stream
heavy onyx
#

this is the first time i tried it

north stream
#

I'm gonna guess a wiring error

heavy onyx
#

ya probably

pine bramble
#

How would I go about emulating a proprietary USB IO device? I have the buffer space it sends documented as well as all its descriptor values and product ID values. I would like to do this with either a pro micro or a pi pico. I've been having trouble finding projects I can work off of. Does anyone know the best way to do this project? No this USB device is not HID so I probably can't use that as a basis either... Looking at the USB data packets in wireshark, the data I want to send to the PC shows up after all the other packet sections (called overflow data iirc). Any ideas/tips are needed!

stable forge
livid osprey
#

Cannot guarantee the security of the links past Hackaday, but might be of interest.

#

Proprietary devices are hard, though, and they only get harder as devices get more advanced. Some years have been spent reverse engineering things like Switch controllers and the like...

pine bramble
pine bramble
livid osprey
#

Though if you're getting meaningful data from wireshark, at least it's not in the USB 3 territory.

pine bramble
#

yeah lol

#

usb 3 is crazy complicated from the videos a watched on it

livid osprey
#

It technically doesn't even use the same pins haha

pine bramble
#

oh yeah i forgot about that lol! its like five pins right?

livid osprey
#

IIRC It uses two unidirectional pairs for data. The bidirectional data pair is only there for backwards-compatibility with USB2 and 1.1.

cold lagoon
#

So im trying to sent an array with an nRF24L01 and it works fine from arduino to arduino. but when i try Esp8266 to arduino the arduino receives some wierd stuff:

unknown.png
tight socket
#

Is it possible to use ardonio on a micro bit board

native dagger
tight socket
#

Also for the lcd is there a 24 hour clock code or would i have to type out individual

rough torrent
#

You could probably find something on the internet

#

Very common

cobalt urchin
#

Hi, I've been trying to figure out if there's a way to use the Talkie sketch :https://www.arduino.cc/reference/en/libraries/talkie/ while I have the adafruit mp3 shield on my arduino uno. I was looking at the schematic: https://github.com/adafruit/Adafruit-Music-Maker-MP3-Shield-PCB and trying to figure out if there would be a way to route the signal to the headphone or amplifier output. any pointers welcome, thanks!

Talkie - Arduino Reference

The Arduino programming language Reference, organized into Functions, Variable and Constant, and Structure keywords.

GitHub
GitHub - adafruit/Adafruit-Music-Maker-MP3-Shield-PCB: PCB files fo...

PCB files for the Adafruit Music Maker MP3 Shield for Arduino - GitHub - adafruit/Adafruit-Music-Maker-MP3-Shield-PCB: PCB files for the Adafruit Music Maker MP3 Shield for Arduino

cobalt urchin
#

maybe a jumper from a digital i/o pin to the mic or L2 pads?

mighty granite
#

hello I am trying to use adafruit bme280 with arduino uno but it isn't work

#

I run I2C scanner and it didn't find the bme280

#

is it a wiring problem?

leaden walrus
#

that'd be the first thing to check

#

how is the BME connected to the UNO?

crystal frigate
#

Hey all. Was talking to someone earlier about my 5v booster and my amp sharing the same ground, because the booster receives 3 volts. Am I wrong to say a 1 way diode should live in between the 2 grounds or does it not really matter?

IMG_0119.png
north stream
#

No, you don't want a diode

crystal frigate
sick tiger
#

So i had this issue before:
#help-with-arduino message
I have no /dev/ttyUSB0 file
(Arch - exp8266)

[ 4398.468421] usb 1-4: new full-speed USB device number 7 using xhci_hcd
[ 4398.759918] usb 1-4: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64
[ 4398.759927] usb 1-4: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ 4398.759931] usb 1-4: Product: USB Serial

Bus 001 Device 007: ID 1a86:7523 QinHeng Electronics CH340 serial converter

crw-rw-r-- 1 root root 189, 6 Mar 18 13:06 /dev/bus/usb/001/007

last time i install the AUR driver, but reinstalling did not help
(https://aur.archlinux.org/packages/ch34x-dkms-git)

But i could notice 2x errors on build:

==> dkms remove --no-depmod ch34x/r44.845e6f5 -k 5.16.15-arch1-1
:: Processing package changes...
Error! The module/version combo: ch34x-r44.845e6f5 is not located in the DKMS tree.
error: command failed to execute correctly
(1/1) reinstalling ch34x-dkms-git
Creating symlink /var/lib/dkms/ch34x/r44.845e6f5/source -> /usr/src/ch34x-r44.845e6f5
Error! Your kernel headers for kernel 5.16.15-zen1-1-zen cannot be found at /usr/lib/modules/5.16.15-zen1-1-zen/build or /usr/lib/modules/5.16.15-zen1-1-zen/source.
Please install the linux-headers-5.16.15-zen1-1-zen package or use the --kernelsourcedir option to tell DKMS where it's located.

I reinstalled the headers and they match the version but the issue persists

stable forge
smoky sun
#

Bit of an odd question but is there a simple way to increase current usage on an ESP32? I've got a board that uses an IP5306 for charging/power but it goes into standby and shuts off when current usage is below 100 µA. I've got a simple program that doesn't use any connectivity so current draw is quite low and the board doesn't stay on past the standby timer.

safe shell
#

I'm surprised it gets down to 100 µA without any sleep modes. But you shouldn't need much. It'll be wasted current essentially, but you could add an LED or NeoPixel, or even just a resistor sized to put current above threshold (on one of the power pins, or on a digital output so it only prevents shutoff while the code is running).

smoky sun
#

I was reading the datasheet incorrectly 100 µA is the current draw on the battery while the charging ic is in standby mode. The cutoff to get into standby mode is 45mA.

#

Added a resistor to waste some current and it's working to keep the board alive.

#

Thank you 😌

fossil cypress
#

i've done all the googlin i can on this and ive come to the conclusion that i'm dealing with faulty hardware BUT anyoen familiar with hooking up an itsybitsy 32u4 via usb to windows 10 and it not loading the proper drivers? it sees it atm32u4DFU but its not given a com port and its not loading the driver for it

#

i really just want to test my trellis pcb to see if i so,dered the leds right. i have a bunch of nanos, 2 duos, a few rp2040 boards. rpis. i'm not sure the best way to test it without a 32u4 board

north stream
#

That sounds like it's in DFU bootloader mode instead of serial mode.

fossil cypress
#

i found out i could use the uno to test my trellis. but i would love to get the itsybitsy working if i can since that's what i wanted to use for the final project build anyway

cold lagoon
#

am i stupid or why doesnt it go in if (topic == "205"), when the topic is 205. ive also tested it without 205in braces but nothing works.

cedar mountain
cold lagoon
#

but thats checking if the topic 205 = 0 or? because later in i want to control the brightness of a light so it could be 0-255

cedar mountain
cold lagoon
#

ahh ok ill try it

#

works fine Thanks 🙂

rugged plinth
#

I'm using SdFat and the adafruit spiflash lib and the MS5607, anyone know why I'm getting readings that look like this while idle

unknown.png
#

the datalogging rate is 20hz, and I've heard that the ms5607 does some funky stuff with delays

rugged plinth
#

another example, this is only happens while logging data. when printing to the serial monitor/plotter here is some noise but it is not as bad as what is shown here

unknown.png
cold lagoon
cedar mountain
cold lagoon
#

jeah it should hold the value that gets printed in line 55. but i cant get it to do it

cedar mountain
#

Maybe something weird is happening on the receive side?

#

Oh, sorry, I'm just catching up to what you wrote. Do you have an ASCII-to-integer conversion somewhere? Or are you starting from the string "176" and trying to assign that to an integer?

#

The atoi() function would do the conversion from a string.

cold lagoon
#

no i think i get the ASCII but im not sure it could be something else too

cold lagoon
#

the thing is it prints exactly the thing that i want in the array in line 55. id only need to knew how to get it in the array

cedar mountain
#

It's not yet clear what "it" is, though. Maybe post the code you're currently trying?

cold lagoon
cedar mountain
#

So this is sending 255 as InVal?

cold lagoon
#

yes for now. but it should send the number it prints in line 56

#

but for some reason Serial.print((char)payload[i]); is 176
but int
int InVal;
InVal = (char)payload[i];
Serial.print(InVal);
is 54

cedar mountain
#

54 is the ASCII value of "6", so that would be picking up the final digit in the string payload.

#

You'd want to do something like:c char temp[12]; if (length < sizeof(temp)) { memcpy(temp, payload, length); temp[length] = 0; InVal = atoi(temp); }It's slightly more convoluted since you have to null-terminate the payload string.

cold lagoon
#

ummmm. my brain is moking i think i need a pause see you tomorrow : )

#

jeah for some reason this only forks for the
if (strcmp(topic, "219G") == 0) and if (strcmp(topic, "219B") == 0) loops and not for the
if (strcmp(topic, "219R") == 0) loop, which is just the same

#

but ill go to bed now.

north stream
mellow osprey
#

Hi I’m new to the Adafruit discord so Hello…I’m working on a project and had got it up and working on an uno. I recently got a qt py samd21 in the mail and tried uploading the sketch I had to it and it didn’t work. I then tried uploading a blink sketch to it to see if it would work and that didn’t work either…the programs compiled and uploaded correctly, so I don’t really know what I’ve done wrong…Seems like a lot of people use this board for circuit python, and not so much arduino is it the wrong sort of board for my project?

odd fjord
odd fjord
#

Interesting -- I just tried both the basic blink sketch and the neopixel_blink sketch on a QTPy -- as you noted, the blink sketch compiles and loads but does nothing - also as expected since there is no LED. I am surprised the pin LED_BUILTIN is recognized when the sketch is compiled. The neopixel_blink sketch works normally. blinking the onboard NeoPixel.

random dock
#

Howdy! I am curious if anyone knows how to connect a TRRS breakout board to Arduino Nano Every. I want to test if I can connect a 3.5 mm audio jack from the SparkFun Pocket Geiger Counter Type 5 to the TRRS breakout board, connecting to Arduino Nano Every. Currently, I am steering away from connecting the V+, GND, SIG, NS (SparkFun Pocket Geiger Counter Sensor Type 5) to the Arduino Nano Every (V+ to 5V, GND to GND, SIG to D2, and NS to D5). I have scoured all over the internet. It is difficult to find documents/resources about it. Do I need any resistors/capacitors?

Is it feasible if I connect the TRRS breakout to Arduino Nano Every?
SLEEVE to Arduino GND

Ring 1 to Arduino D2 for SIG?

TIP to Arduino D5 for NS?

I found a Fritizing image with the TRRS breakout board connecting to the AMB21 board.

SparkFun Pocket Geiger Counter Sensor Type 5: https://www.sparkfun.com/products/14209
TRRS Breakout Board for 3.5 mm audio jack: https://www.sparkfun.com/products/11570
Arduino Hookup: https://cdn.sparkfun.com/assets/learn_tutorials/1/4/3/GeigerCounterType5_connect_with_arduino.pdf

Worst comes to worst, I will just solder the pin headers and connect V+ to 5V, GND to GND, SIG to D2, and NS to D5 from the Geiger Counter to Arduino. Thank you!

unknown.png
mellow osprey
# odd fjord Interesting -- I just tried both the basic blink sketch and the neopixel_blink s...

Thank you so much… I have since gotten the neopixel blink sketch to work and I adapted my code slightly so that it reads the Hall effect sensor in my project and prints out the right information…My only problem now is that it won’t display the data to the oled I have hooked up…I updated all the required libraries for the ssd1306 oled but it still doesn’t display anything even the oled example sketch

odd fjord
past beacon
#

I am creating code for a rocket to have a servo deployed at a specific altitude and execute a maneuver autonomously. For this, I chose the Adafriut QT Pi paired with a BME280 Temp/ Press/Humidity sensor. Using the example code for the BME280 I built in an If/else statement to read the altitude and execute the maneuver. The only problem is getting the data displayed in the Serial monitor into my code. I attempted to use bme.readAltitude() for this function as that is used in the void print. I'm also not 100% sure the 'digitalRead' command is even applicable here or if another command is necessary. It's likely something simple but I'm inexperienced. The information I have found likely holds the answer but I have not identified it due to my basic understanding. Thanks for your help it means a lot!

The issue is located in the Void Loop section on line 75. My goal here is to have the code acknowledge that the altitude variable is greater than 1.
Line 75: if (digitalRead(bme.readAltitude(SEALEVELPRESSURE_HPA)) > 1)
Even though the code runs the result activates the else statement. This action is false so this can not be the correct command.

#

Open in notepad

cedar mountain
past beacon
#

Ok, I understand. What command is needed for such an operation?

cedar mountain
past beacon
cedar mountain
#

BTW, we've found that the Bosch sensors generally give decent altitude readings even above the limits quoted in the datasheet. We've flown them up to 60,000 feet and still gotten reasonable pressure values.

past beacon
# cedar mountain BTW, we've found that the Bosch sensors generally give decent altitude readings ...

Wow that's crazy high, this code is for a Carbon fiber Nylon 3D printed rocket that we are using for the TARC (THE AMERICAN ROCKETRY CHALLENGE). Carrying two horizontally set eggs it will reach apogee around 810ft for our qualifying flight. The nose cone contains a servo that will separate when approaching 810ft and act as an sort of Air Brake. This ensures the rocket hits the correct altitude, no more, no less.

cedar mountain
#

Well, we were using balloons, so it took a while to get that high, heh heh.

old kelp
#

anyone else having issue's getting esp32 devices to connect on win 10?

old kelp
#

ok i'm convinced it's the cable but dont have a spare to confirm rn

woeful igloo
#

i ordered an arduino uno r3

#

im not sure what arduinos do but i heard theyre used for circut python which is what im kinda looking for

odd fjord
woeful igloo
#

whats an arduino uno used for then

#

and what models work with circutpython

odd fjord
livid osprey
#

Arduinos work best with the Arduino IDE, which uses C++ style code instead of Python. It predates CircuitPython by a fair amount, and still has its advantages over CircuitPython due to its lower-level code.

woeful igloo
#

thats still good honestly since i already know quite a bit of c++

#

whats the c++ variant of circutpython called tho

odd fjord
woeful igloo
odd fjord
livid osprey
woeful igloo
#

arduino just uses plain c++?

#

and not a modified version?

livid osprey
#

I don't think there is a way to utilize the Arduino/C++ language in a CircuitPython environment, as they are two separate options.

livid osprey
woeful igloo
#

thanks

#

so im guessing i use plain c++ to do circut stuff on an arduino uno?

dim juniper
#

Hi guys I am really frustrated. I have a spi 128x64 oled using adafruit library its and SH1106 based. I cant get the adafruit emblem out of the buffer does not clear and go to blank at all

I am rusty havent touched an arduino in more than a year

odd fjord
#

use the Arduino IDE

woeful igloo
#

alr thanks

#

so the only periphrals i need for an arduino uno r3 should be a generic starter kit and the cable yes?

odd fjord
#

That should be good to get started. some resistors and leds

woeful igloo
#

yeah that

livid osprey
odd fjord
dim juniper
woeful igloo
dim juniper
#

@livid osprey I am seriously rusty so please forgive me

woeful igloo
#

by breadboard im assuming you mean the white board with holes or whatever you call it

odd fjord
woeful igloo
#

alrighty then

livid osprey
dim juniper
#

@livid osprey what I am trying to achieve is the following. Display starts with my own logo then pages through F1 team logos then on to some F1 steering wheel display type animations and then back to start. Thats what its suppose to do when done

#

this will be fitted into a mini 3d printed f1 steering wheel

#

so that hex code is my logo

livid osprey
# dim juniper

Ah, clearDisplay() clears the buffer, but doesn't refresh the display. Try adding another display() call in your loop()

dim juniper
#

ok cool

#

Will give it a go thanks in advance @livid osprey

#

@livid osprey you rockstar!!! thanks a lot

livid osprey
#

I'm rusty too, haven't touched this in months myself. Glad it's working!

dim juniper
#

@livid osprey Houston we have a problem

#

Try to print a simple line because bitmap code aint working and it stays black un comment one of the clear display lines and the adafruit logo is back

livid osprey
dim juniper
#

I am trying something I dont thing this SH1106 is all its cracked up to be might need to try and get a i2c ssd1306

livid osprey
waxen hawk
#

can i get advice in working with serial communication. I have a charge controller with aa rs232 port and I want to hook it up to an arduino. The question is how do I go about communicating between the charge controller and arduino? or should I get a raspberry pi that handles everything for me?

cedar mountain
waxen hawk
#

It does have usb ports but am not sure if I can communicate via bus. hmm looking for data sheet

cedar mountain
waxen hawk
#

anybody heard of modbus before?

faint raft
#

[non-Adafruit product question] Has anyone messed with the SQFMI Watchy? I just got one, but can't flash anything to it. esptool.py just keeps timing out.

#

That said, it charges, it displays time and weather, but I can't change any of the settings values because they're hard-coded into the bin.

faint raft
#

also, this forum thread has a lot of information on various Renogy stuff: https://www.t6forum.com/threads/renogy-dcc50s-display.18572/page-6
as does this page: https://diysolarforum.com/threads/renogy-rs-485-communications-interface-in-detail.12495/

VW T6 Transporter Forum
Renogy DCC50S Display

Hi
do you think this will work: as nano ble?
https://de.aliexpress.com/item/33006686263.html?spm=a2g0o.cart.0.0.59443c008RlVti&mp=1

DIY Solar Power Forum
Renogy RS-485 communications interface...in detail

See attached pdf file for details concerning Renogy's RS-485 communications interface...should\could be helpful for anyone else that's tired of Renogy's BlueTooth external adapter inconsistent connectivity.

#

@waxen hawk I posted some links for you to take a look at when you have a chance. Some are only for RS-485, but I think you'll be able to use them as stepping stones for finding the right communications settings and registers for the Rovers you have.

waxen hawk
#

@faint raft Sorry for the late message. But thanks a lot! I was looking something for these. I appreciate you going out your way to find these links!

dim juniper
livid osprey
# dim juniper

It seems you commented out the display() callout. You should have one of those every time you want to update the screen?

west skiff
#

Hey, I am having some issues setting up a flywheel to my arduino. I am trying to be able to control it with serial inputs so I tried to copy this guide on how to use do it for a motor but switched the motor for the flywheel https://www.instructables.com/Use-Transistor-As-Motor-Driver-Basic/ but it didn't really work, it doesn't spin fast and it stops working after the first spin. Does anyone know what could be causing this issue? (it works fine if I use a motor like in the guide)

The flywheel I am using is an old one I got from a nerf stryfe.

north stream
#

There's not a lot of data to go on. I'm assuming the "flywheel" is a motor + flywheel. The first possibilities that occur to me are a) the flywheel motor needs more current than your other motor, b) the flywheel motor needs more voltage than your other motor, c) inductive kickback is interfering with the transistor, or d) motor noise is interfering with your controller or drive circuitry.

livid osprey
#

Disclaimer: these are just initial thoughts based on the limited information you provided and five minutes of googling what a Nerf Stryfe even is. The issues could run deeper than this, but without some pictures or videos of your test setup, this is all I got.

@west skiff A lot of the motors used for the Nerf Stryfe seem to be rated for 11.1V. A 9V battery isn't going to be able to drive a lot of current through a motor, as it has a fairly high internal resistance. If you want to drive these motors with reasonable current, I'd look into acquiring a 3S (11.1V) Lithium-Ion or Lithium-Polymer battery instead.

crisp talon
#

Hello!

Quick question I can get two Adafruit Feather 32u4 Bluefruit LE To talk to each other right?

formal onyx
#

Comparing the arduino nano and uno, are there any differences in terms of library compatibility? I'm assuming not since they're both using atmega328p? Stuff like how if you're using the servo library, it disables PWM on 9 and 10. That still happens on the nano? Are there any other things like that that are present on the nano but not the uno?

north stream
runic oasis
leaden walrus
#

and a way to upload firmware via UPDI - a USB serial cable and resistor work well

#

the specific firmware builds are in the "examples" folder

runic oasis
#

Looking at those examples in the adafruit firmware I couldn't figure out how to interface with the encoders. I was going to try to base it off the i2c rotary encoder but I noticed that was using the SAMD09 and not the ATtiny817.

leaden walrus
#

the SAMD09 seesaw firmware is significantly different.

#

both software and hardware

livid osprey
#

Are you trying to rewrite the firmware, or just interface with an ATtiny817 seesaw?

leaden walrus
#

there's a lot of code related to the active object framework, which attiny seesaw does not use

livid osprey
#

If you use the default firmware, you could read 4 encoders as if you were using a gpio expander?

leaden walrus
#

that looks like the main ISR for updating encoder position based on timer/counter

#

keep in mind the attiny's TC is 16 bit vs. SAMD09's 32 bit

runic oasis
#

I can read the pins like a gpio expander by i2c is too slow to catch position changes accurately especially if I plan to use this in CircuitPython.

runic oasis
leaden walrus
#

yep

#

a "feature request" sort of issue

#

that could start a dialog on how best to implement, etc.

#

my info above is just a very rough sketch

runic oasis
#

I also couldn't find the Adafruit seesaw Peripheral in the Arduino Library Manger or did I just miss a step?

leaden walrus
#

it's not really a true library, so not registered

#

for dev work, you'd fork the repo, clone it locally, make a branch, etc.

#

to build firwmare, you'd open one of the examples as a typical sketch

quartz furnace
#

Ughh can’t remember where I saw a library for this ….. project I want to send data over a wifi network to a few ESP32s *note all esp32 boards may have to send or receive data

I saw the server / client example code …. But I thought I saw a library that just “broadcasts” a message to all boards on the same port

Extra info: I have been using the ESP-NOW library and with that implementation the sender is it’s own access point …. I’m looking to create a larger radius to reach devices (indoors and out ) and setting up a wifi and extending that signal seems necessary

north kelp
quartz furnace
#

Depreciate*

north kelp
#

The choices depend on your use case. What are you making? What is the required bandwidth, latency, distance?

#

One could use cheap TPLink or similar Wi-Fi extenders. Or pairs of ESP APs and clients. Or Wi-Fi/LoRA bridges.

#

Or lasers. 🙂

quartz furnace
#

Bandwidth is super small .. just a small string under 20 char. Latency hopefully within a few hundred milliseconds… distance is two part 1) a good strong signal with minimal dead spots… and 2) wifi router would auto change channels whereas ESP-Now has hard coded channels ( likely will be okay. But if it’s crowded / interference

north stream
#

You could look at the NRF24L01+PA+LNA boards, they'll get you a fair amount of distance

quartz furnace
#

Hahah I’m doing exactly that .. planned on using TP-link extension I got at my local Microcenter

#

NRF.. might be something to look at

north kelp
#

Cool; may not need speed of Wi-Fi, trading that for distance and low power.

north stream
#

Another option is the low cost 432MHz modules along with the PJRC VirtualWire library

#

Er, Mike McCauley's library

north kelp
quartz furnace
#

Yep I’ve messed with those … found a really well designed board from eBay

#

Well thanks everyone… it’s somewhat just wanting to expand to another platform…. Learn , test , trial , compare

north kelp
#

That one can run with 3.3V or 5V logic, without level shifting.

quartz furnace
#

Going to a different board is an option.. just had a few ESP32 ‘s on hand …. Since I’ve done ESP-NOW, and an email client that sends gmail … also pushover and IFTTT Immigrations..

#

And with esp32 it’s either Bluetooth or wifi ..( ***esp-now or wifi server client)

north kelp
#

@quartz furnace why not both? (ESP32 Wi-Fi + 433MHz breakout)

runic oasis
# leaden walrus to build firwmare, you'd open one of the examples as a typical sketch

I built a UPDI programmer using a serial cable and have attempted to compile and flash the default firmware, but when I connect to a qt py and scan i2c, I get nothing. I've attempted it with two different boards and I get the same result. This shows up in the arduino IDE when I compile it. Any thoughts?

Precompiled library in "/[PATH_REMOVED]/Arduino/libraries/Adafruit_seesawPeripheral/attiny{build.attiny}" not found

leaden walrus
#

you're using the breakout dev board?

runic oasis
leaden walrus
#

how did you do the initial setup for getting the main repo in place?

#

locally

runic oasis
#

I compiled the example_pid5223.ino and copied that over using pymcuprog

pymcuprog -d attiny817 -t uart -u /dev/cu.usbserial-0001 write -f /var/folders/py/zynph3fj15q9xdzctl2qnb2r0000gn/T/arduino_build_82565/example_pid5233.ino.hex 
Pinging device...
Ping response: 1E9320
Writing from hex file...
Writing flash...
Done.
#

I downloaded the main repo and manually copied it over into my Arduino\libraries directory.

leaden walrus
runic oasis
#

Yes

leaden walrus
#

try erasing the flash first

#

pymcuprog -d attiny817 -t uart -u /dev/ttyUSB0 -m flash erase

#

changed for your -u

runic oasis
#

Okay, flashed erased fine and re running the other command

leaden walrus
#

yep. then reupload the hex.

runic oasis
#

That did it thanks

#

I thought I really messed something up

leaden walrus
#

cool. you should be pretty safe now that you can program. can always just erase flash and start clean.

runic oasis
#

Perfect!

leaden walrus
#

should be virtually unbrickable..in theory...ymmv

runic oasis
#

I tested changing the base address and and it showed up in CP!

leaden walrus
#

i was just looking in more detail how the SAMD seesaw does encoder reading. added some info to your issue thread.

willow compass
#

I hope this is the right channel. I am having to switch boards from what i was using for an Adafruit GPS. I am using a Teensy 4.0, and have setup where I can use the Arduino IDE with he Teensy. I was trying to just do the basic Hardware parsing test, but just getting the following output

unknown.png
#

I have verified that the GPS is connected to Serial2 of the Teensy, which I am using in the code

cedar mountain
#

Wrong baud rate on Serial2?

willow compass
# 
#include <Adafruit_GPS.h>

// what's the name of the hardware serial port?
#define GPSSerial Serial2

// Connect to the GPS on the hardware port
Adafruit_GPS GPS(&GPSSerial);

// Set GPSECHO to 'false' to turn off echoing the GPS data to the Serial console
// Set to 'true' if you want to debug and listen to the raw GPS sentences
#define GPSECHO true

uint32_t timer = millis();


void setup()
{
  //while (!Serial);  // uncomment to have the sketch wait until Serial is ready

  // connect at 115200 so we can read the GPS fast enough and echo without dropping chars
  // also spit it out
  Serial.begin(115200);
  Serial.println("Adafruit GPS library basic parsing test!");

  // 9600 NMEA is the default baud rate for Adafruit MTK GPS's- some use 4800
  GPS.begin(9600);
  // uncomment this line to turn on RMC (recommended minimum) and GGA (fix data) including altitude
  GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
  // uncomment this line to turn on only the "minimum recommended" data
  //GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCONLY);
  // For parsing data, we don't suggest using anything but either RMC only or RMC+GGA since
  // the parser doesn't care about other sentences at this time
  // Set the update rate
  GPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ); // 1 Hz update rate
  // For the parsing code to work nicely and have time to sort thru the data, and
  // print it out we don't suggest using anything higher than 1 Hz

  // Request updates on antenna status, comment out to keep quiet
  GPS.sendCommand(PGCMD_ANTENNA);

  delay(1000);

  // Ask for firmware version
  GPSSerial.println(PMTK_Q_RELEASE);
}
#

should be 115200

formal onyx
#

I'm making an EEPROM programmer with an arduino nano and two SN74hc595 shift registers. I've been chasing some strange behaviors during testing and have narrowed it down to one of the shift registers- one of the pins, (Qd) is floating, instead of being high (according to my logic probe). I can pull it low no problem, but when I shift a 1 into that spot it's just floating. All other pins are working fine. I've replaced the chip to no avail. What can cause this kind of behavior?
Im probing the chip leg itself, not the breadboard, so it's not the breadboard making a bad connection.

steel isle
#

Hello

#

I need help with a project

stable forge
# formal onyx I'm making an EEPROM programmer with an arduino nano and two SN74hc595 shift reg...

It sounds like the 74HC595 is designed to have floating outputs on request. Does QD have a different value than the other outputs (e.g., it's high when the others are low):

The SNx4HC595 devices contain an 8-bit, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has parallel 3-state outputs. Separate clocks are provided for both the shift and storage register. The shift register has a direct overriding clear (SRCLR) input, serial (SER) input, and serial outputs for cascading. When the output-enable (OE) input is high, the outputs are in the high-impedance state.

#

is OE low or high?

stable forge
stable forge
formal onyx
stable forge
#

is OE high or low?

formal onyx
#

OE is high

#

no sorry, low

#

I'm using the inbuilt shiftOut() to write the data to them, hoping it's not a timing issue then?

void setAddress(int address, bool outputEnable){
  for(int pin = 0; pin <= 7; pin++){
    pinMode(EEPROM_IO[pin], OUTPUT);
  }
  
  shiftOut(DATA, CLK, MSBFIRST, (address >> 8) | (outputEnable ? 0 : 0x80));
  shiftOut(DATA, CLK, MSBFIRST, address);
  
  digitalWrite(LATCH, LOW);
  digitalWrite(LATCH, HIGH);
  digitalWrite(LATCH, LOW);

  delay(100);
}```
stable forge
#

it should not be floating regardless of how you are writing the data, if OE is low. How is OE set low? do you just have it tied to ground?

formal onyx
stable forge
#

you could jumper it to ground to force it

#

I would check that it's solidly ground

#

it's very weird it's just that pin. If you pull the jumper on the pin so it's not connected to anything, it still reads as float?

#

what kind of meter are you using that detects float?

formal onyx
stable forge
#

HI = high impedance, I guess

#

did you try it with a voltmeter?

#

Qd is just one random pin among many, so I am surprised

#

especially since you swapped chips

#

for instance, if you just took that chip, put it in another breadboard, powered it, grounded OE, and did nothing else, does it read high?

#

also remember that long breadboards often have a split for their power rails in the middle, so if you are powering only one side of the power rail, the other half may have no connection

#

I did not look at your wiring in detail

formal onyx
#

strangely now it is fluctuating between L and HI (whereas it should be L and H), but it was not before. which sounds like a loose connection if it's changing behavior like that?

stable forge
#

so if you have another breadboard, try that standalone, to eliminate (or confirm) the existing breadboard and the wiring as a cause

formal onyx
#

okay ill try that

stable forge
#

yes, sounds like a flaky connection

#

90% of the time my signal problems have turned out to be mechanical

formal onyx
#

I swapped the two shift registers, so a known working one in, and still same behavior- rather than move to another breadboard, I opted to remove the EEPROM first, and it's now functioning correctly.

#

The LED is connected to the shift register through a 3.3k resistor, while the EEPROM is connected directly, so im wondering if the EEPROM is sinking the current thus the LED is not lighting up and giving HI.

#

But none of the other pins are doing that. I'll make sure that wire is goign to the correct pin of the EEPROM.

stable forge
#

if it is sinking current, it should be pulling it down firmly, so it will not be high impedance, but I'm not sure how the logic probe is figuring it out. a voltmeter or scope would help here

formal onyx
#

With the EEPROM installed, I am reading 4.51V off the functioning pins, and 1.01V off the questionable pin. Without the EEPROM, all the pins are reading 4.78V.

#

It's definitely hooked up to the right pin, checking continuity with the meter and referencing the pinout. I can check the EEPROM datasheet to see if there's anything special about A3... I hope it's not damaged.

#

If I swap the pin connected to A3 with its neighbor, the behavior follows. so it definitely has something to do with A3 of the EEPROM

#

Okay well big facepalm on my part. I was researching this issue, and found a thread where I believe someone was making the same mistake I did.. they (and I) were looking at the TSOP pinout instead of the DIP pinout in the datasheet 🤦‍♂️ And it turns out, what I thought was A3 is actually GND.

stable forge
radiant palm
#

Question: Can I load 4 neopixel strips on 4 different pins like this?

const byte stripPins[4] = { 24, 25, 15, 14 };
and const int numLeds = 144;
Adafruit_NeoPixel strips[4] = Adafruit_NeoPixel(numLeds, stripPins, NEO_GRB + NEO_KHZ800);
#

Gives me this error:

/Users/saurabhdatta/Documents/Arduino/sketch_mar25a/sketch_mar25a.ino:6:89: warning: invalid conversion from 'const byte* {aka const unsigned char*}' to 'int16_t {aka short int}' [-fpermissive]
 Adafruit_NeoPixel strips[4] = Adafruit_NeoPixel(numLeds, stripPins, NEO_GRB + NEO_KHZ800);
                                                                                         ^
In file included from /Users/saurabhdatta/Documents/Arduino/sketch_mar25a/sketch_mar25a.ino:1:0:
/Users/saurabhdatta/Documents/Arduino/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.h:219:3: note:   initializing argument 2 of 'Adafruit_NeoPixel::Adafruit_NeoPixel(uint16_t, int16_t, neoPixelType)'
   Adafruit_NeoPixel(uint16_t n, int16_t pin = 6,
rough torrent
#

You might be able to put it in {} to fix it

willow compass
#

working with Arduino and Adafruit GPS. I've seen this code to change the baud rate, I am not sure what the secondary part involves from the multiplication

void setup() 
{
  // 9600 NMEA is the default baud rate for Adafruit MTK GPS's- some use 4800
  GPS.begin(9600);
//  GPS.sendCommand("$PMTK251,57600*2C");  //set baud rate to 57600
  GPS.sendCommand("$PMTK251,38400*27");  //set baud rate to 38400
//  GPS.sendCommand("$PMTK251,19200*22");  //set baud rate to 19200
//  GPS.sendCommand("$PMTK251,9600*17");  //set baud rate to 9600
  mySerial.end();
  GPS.begin(38400);
}
#

like I see the first value is what you want it to be, what is the *2C and such for?

leaden walrus
#

i think those are checksums (the value after the *)

#

in the command sheet document (first link on that page)

# 
>>> command = "PMTK605"
>>> data = [c.encode()[0] for c in command]
>>> chksum = 0
>>> for d in data:
...   chksum ^= d
... 
>>> chksum
49
>>> hex(chksum)
'0x31'
>>>
quasi acorn
#

Hi!
I'm trying to hook a 0.96 80x160 RGB ST7735 display to an ArduinoMega
Pins on the display are GND, VCC, SCL, SDA, RES, DC, CS, BLK
I wired like this:
display. MCU
GND <-> GND
VCC <-> VCC
SCL <-> D21 (SCL)
SDA <-> D20(SDA)
RES <-> Nothing
DC <-> D22
CS <-> D23
BLK <-> Nothing

#

Initialisation seems ok but the display doesn't lit, even the backlight

leaden walrus
quasi acorn
#

this one

leaden walrus
#

weird pin naming

unknown.png
#

it's SPI

unknown.png
livid osprey
#

I've seen that on a number of cheap clones... Should be SCLK/MOSI?

leaden walrus
#

i'm guessing SCL is SCLK and SDA is MOSI

livid osprey
#

I dunno where the 4th wire in 4-wire SPI is though.

leaden walrus
#

since the TFT doesn't talk back to the host, there's no MISO

# 
SCL <-> D21 (SCL)
SDA <-> D20(SDA)
#

these are I2C pins

#

most likely you'll need to change your wiring to be SPI based

quasi acorn
#

OK I TRY THAT

#

oops

#

I think it's the same problem

leaden walrus
#

yep

#

their first fix was to just use the I2C pins for software SPI - which ended up being slow

#

if you re-wire to hardware SPI pins, and use the hardware SPI constructor, should be faster

jolly ice
#

Is there anywhere that documents the changes to the Adafruit_MCP23017 library? All the examples use an older version which differs significantly from the latest

#

i.e. getLastInterruptPinValue is missing

quasi acorn
#

Ok, that's not very documented the mapping between SPI ArduinoMega and the display

leaden walrus
livid osprey
#

Yes, the pins on these cheaper breakouts are labeled in a very misleading way. The SCL/SDA on the display don't correspond to SCL/SDA on the Arduino, as the interfaces are different. I believe 52 was SCLK, and 51 was MOSI?

jolly ice
#

True I was looking at the current classes and most things were fairly straight forward to figure out what they changed to

leaden walrus
#

are you looking at library examples? or examples from somewhere else?

jolly ice
#

guessing I just need to use the readGPIO func directly now

#

didn't think about library examples good call

leaden walrus
#

the biggest changes happened at 2.0.0 - they were breaking

#

if that was written prior to 2.0.0, it would need updating

jolly ice
#

// This one resets the interrupt state as it reads from reg INTCAPA(B).
v = mcp.getLastInterruptPinValue();

leaden walrus
#

or you could down grade your library version to match

jolly ice
#

is the line I'm stuck on atm

#

thought about that but figured there were probably bug fixes since then

#

but maybe not, might be easier to just downgrade

leaden walrus
#

the refactoring done in 2.0.0 was for various reasons, mainly to clean things up to help better support all the variants

#

in general, no features should have been removed (i think)

#

would just need to change code for new library

jolly ice
#

Yeah. Looking at the code for it and trying to translate it to 2.0 calls is a bit more work than I want to do right now so I'm just rolling back to 1.3

#

Thanks though

leaden walrus
#

ok. yah. that's easiest for now.

#

i'm curious where it went though...going to keep looking...

jolly ice
# 
  uint8_t intPin = getLastInterruptPin();
  if (intPin != MCP23017_INT_ERR) {
    uint8_t intcapreg = regForPin(intPin, MCP23017_INTCAPA, MCP23017_INTCAPB);
    uint8_t bit = bitForPin(intPin);
    return (readRegister(intcapreg) >> bit) & (0x01);
  }```
#

was the actual func

leaden walrus
quartz furnace
#

Hi everyone… Happy Friday!!! 🙂

Is there a way to (safely) reduce the number of results that show up under boards (example ESP32 selection ?) I don’t think I’ll ever need options beside Adafruit, SparkFun, M5STACK, and UM boards

#

Or a way to have favorites?

#

Windows or MacOS

leaden walrus
#

i don't think there's a way via the IDE itself, which would be the safest

#

you could manually edit the boards.txt file in the BSP

#

add #s to comment out ones you don't want

elder hare
#

so i moved to my new apartment and i changed the WIFI and PW in my code for my ESP32 and it connects fine to the wifi network but for some reason i cannot connect to it nor can i ping IP or hostname of the ESP32 :S what could be happening here?

unknown.png
marsh cloak
#

I am a bit of a noob, can somebody please explain to me rotary encoders? Why does an encoder without a breakout board have two ground pins, while an encoder with breakout has ground, vcc, and several resistors?

#

Is there any advantage to a rotary encoder using vcc vs not??

cedar mountain
north stream
safe shell
#

@elder hare do you control the router / access point?

elder hare
elder hare
elder hare
#

Why does #include <WiFiManager.h> give out

*********************************************************************
* Looking for ESP8266WiFi.h dependency? Check our library registry!
*
* CLI  > platformio lib search "header:ESP8266WiFi.h"
* Web  > https://registry.platformio.org/search?q=header:ESP8266WiFi.h
*
*********************************************************************

im using an ESP32
im following this tutorial on youtube ( https://www.youtube.com/watch?v=Errh7LEEug0&t=192s&ab_channel=BrianLough )

i did this (from issues section on github)

lib_ldf_mode = deep+
lib_deps = fastled/FastLED
       https://github.com/tzapu/WiFiManager

now it says this

****************************************************************
* Looking for Update.h dependency? Check our library registry!
*
* CLI  > platformio lib search "header:Update.h"
* Web  > https://registry.platformio.org/search?q=header:Update.h
*
****************************************************************
YouTube
Brian Lough
WiFiManager - An Essential ESP32 library!

WifiManger is a library you add to your project where if the ESP32 cannot connect to your WiFi, it will host its own network that you connect to and you can then add your Wifi details from the included webpage.

0:00 Intro
0:29 What is WiFiManager
1:38 Installation
2:05 Use Case 1 - Just WiFi
2:59 Use Case 2 - WiFi + Config
7:57 Use Case 3 - Cus...

▶ Play video
north stream
#

Those messages are configured in to the source code to print out helpful information. There's probably a way to turn them off.

still hemlock
#

Wait jk I got it

pine bramble
# 
 $ egrep board ~/.arduino15/preferences.txt 
board=protrinket5
#

(in Linux)

neat crown
#

Hey, does anyone else's adalogger reset when the 3v pin is touched?

turbid parcel
#

Hey all, where is PIN_I2C_POWER defined for the new ESP32-S2 version C? Though I've selected "Adafruit Feather ESP32-S2" board, the example code for TestBed has a an error saying PIN_I2C_POWER is not defined in the current scope.

turbid parcel
pine bramble
#

I'm trying to build a proprietary USB device emulator using the TinyUSB library with a pi pico... I figured out how to get the vendor and product values to work but the example im trying to modify is still in HID mode... i can't find anything on how to make an emulator... heres the lsusb output of where im at currently:

unknown.png
#

im trying to get the left (pi pico) to match the right (original device)

midnight basalt
trim mica
#

How do I use the UART ports on the qt py esp-32? On the qt-py samd21 I used Serial1 and I'm not sure what I need to change

rugged plinth
#

this is the code if that is helpful

# 
#include <Arduino.h>
#include "MS56XX.h"
#include <SPI.h>
#include <SdFat.h>
#include <Adafruit_SPIFlash.h>

#define EXTERNAL_FLASH_USE_CS 10
#define EXTERNAL_FLASH_USE_SPI SPI

Adafruit_FlashTransport_SPI flashTransport(EXTERNAL_FLASH_USE_CS, EXTERNAL_FLASH_USE_SPI);
Adafruit_SPIFlash flash(&flashTransport);
FatFileSystem fatfs;
File myFile;

MS56XX baro(MS56XX_ADDR_HIGH, MS5607);
void setup(){
  baro.begin();
  flash.begin();
  fatfs.begin(&flash);
}

unsigned long prev_millis;
void loop(){
  baro.readbaro();
  alt = baro.altitude();

  if (millis() - prev_millis >= 50){ // 20 hertz
    prev_millis = millis();
    myFile = fatfs.open("data.txt", FILE_WRITE);
    myFile.println(alt);
    myFile.flush();
  }
}```
odd fjord
cedar mountain
# rugged plinth ```arduino #include <Arduino.h> #include "MS56XX.h" #include <SPI.h> #include <S...

I'm not sure what the actual problem you're having is, but it's a little weird that you're re-opening and flushing the file on every loop. That would require re-scanning the directory of the SD Card, rewriting a full sector, etc. Unless you have some unusual requirements, it'd probably be better to open the file in setup() and just write to it in the loop. You'll naturally get a flush every few seconds as your data fills up a 512-byte sector, but you could manually flush it somewhat more frequently if you were worried about data loss on a power failure or something.

willow compass
#

So, I was working with a Teensy 4.0 and an Adafruit GPS, its going through this level shifter, as the Teensy max voltage on input is 3.3v. All of the GPS data was coming in corrupted. So a change was made to directly wire the the Teensy to GPS and just used the 3.3V off of the Teensy to the Vin of the GPS. With this change the GPS data came through with no problem. Any idea why just going through the level shifter would corrupt the transmitted data?

unknown.png
#

what the data looked like

unknown.png
north stream
pine bramble
#

Doesn't exist any cheap gsm/sim bank board?

north stream
#

Yes, for 2G, but there's not much 2G left in the world.

willow compass
north stream
#

Er, voltage translator, just another way of saying "level shifter"

neat crown
#

Quick question for you guys.

I have the Adafruit Blue fruit feather and when continuity testing the usb 5v line and the ground like they are connected. Are they supposed to be connected like that?

cedar mountain
neat crown
#

@cedar mountain that's a good point, I will try that out thanks!

spring mountain
#

I posted this in the projects channel, but didn't get a bit, so I'm crossposting here as well. I have an ESP32 and a PMSA003I, SGP30, and AHT20 (all STEMMA). I soldered pins on the 3 modules. When I use the STEMMA for I/O, all 3 work fine. However, when I try to use the pins the AHT20 outputs -50C and 15% RH while the other 2 work correctly. I thought maybe I fried the AHT20 when I soldered the pins so I left the other two using the pins for I/O and plugged the AHT20 in via STEMMA to the SGP30 and it worked. So then I tried using the pins for all of them to an RPi and everything works. I'm using 3.3V on both the ESP32 and RPi. I'm not sure what I'm doing wrong with the ESP32.

livid osprey
#

If it worked on the RPi pins, it's probably not a soldering workmanship issue.

spring mountain
#

I'll take one real quick, but I did use the exact same wiring from the ESP32 on the RPi (just unplugged the jumpers from ESP32 and plugged them on the RPi).

#

I'm not the best soldering so that was my thought, but here's a pic of the pins.

PXL_20220327_143548586.jpg
livid osprey
#

Not sure what 15% RH corresponds to, but -50% looks like your sensor is returning zero where it expects temperature data.

#

Connections look right. Software, perhaps?

spring mountain
#

I think 15% is the low end of the sensor, so I think they're both "0"

#

Same software between using the pins and using the STEMMA

#

But I'll post the code, one sec.

#

How do I post a code block? Every time I paste in triple backticks it adds a text file instead of the text.

livid osprey
#

Might be too large for a code block. Text file is fine.

spring mountain
#

So when I stop using the pins, I unplug the jumpers from the AHT20 (leaving the jumpers for the SGP30 and PMSA003I) and plug the AHT20 to the SGP30 with a STEMMA cable.

#

Run the exact same code and it works.

livid osprey
#

Hmmm, that's strange. Only thing I could think of is stray capacitance from your breadboard pushing the AHT module readings to just outside of readability for the ESP32...?

spring mountain
#

And the RPi isn't as sensitve to that?

livid osprey
#

I2C can be kinda funky in weird edge cases, so unless you have an oscilloscope, it might be hard to investigate further.

#

Maybe, maybe not? Has to do with the pullups and I2C rate, so if they're configured differently by default, you might have slight difference in performance.

#

Not that I know offhand the performance or defaults of each, but if the stemma qt cable works, there shouldn't be any issue in code or wiring.

spring mountain
#

That was my thought about the stemma cable. Unfortunately I don't have an oscilloscope at home. I'll try isolating to just the AHT20 directly connected to ESP32 (honestly I should've thought to do that before posting)

#

Appreciate the help, though!

spring mountain
#

I think the problem is a bad jumper cable. 🤦‍♂️

#

It is... Geez:

Humidity: 35.88% rH
TVOC 0 ppb    eCO2 400 ppm
Raw H2 13508     Raw Ethanol 18225

---------------------------------------
Concentration Units (standard)
---------------------------------------
PM 1.0: 0        PM 2.5: 0        PM 10: 0
Concentration Units (environmental)
---------------------------------------
PM 1.0: 0        PM 2.5: 0        PM 10: 0
---------------------------------------
Particles > 0.3um / 0.1L air:90
Particles > 0.5um / 0.1L air:30
Particles > 1.0um / 0.1L air:0
Particles > 2.5um / 0.1L air:0
Particles > 5.0um / 0.1L air:0
Particles > 10 um / 0.1L air:0
---------------------------------------
north stream
#

I got bit by a bad jumper cable when trying to read the internal data stream from an R/C receiver. Hint: cut those cables in two so they don't end up causing problems again in the future.

spring mountain
#

Yup. Cut and trashed. A 2" jumper isn't worth the hassle this has caused 🙂

pine bramble
#

I'm still hitting obstacles trying to get started coding a hardware based (RP2040) USB emulator for an IO device. I got the vendor and product id to work using the TinyUSB library but it doesn't seem to let me choose a custom bInterfaceClass since this input isn't HID or Xinput. I'm not sure what to do at this point. I need more guidance than I thought...

native dagger
#

I'm starting the search for an arduino based PID position controlling library, wondering if anyone has one they love to use.

#

For DC brushed motors

toxic gulch
#

Does anyone know anything about connecting arduino devices to enterprise wifi? I have an arduino MKR 1010 that connects just fine to my home wifi, so I know it works. I’m attempting to follow the built-in example of connecting to my university’s enterprise network and it just gets stuck in a loop of attempting to connect. I’ve made sure my password is correct and that the ssid is spelled right, as well as tried it with both my email and just username.

native dagger
#

Is this a business/your work? It's possible that the network is kicking/not allowing the device

toxic gulch
#

I’m a student here so. Sort of?

#

Is there any way to tell why it would be kicking it/ if it is?

native dagger
#

I'm not sure, I just know that it's a possible issue. I know very little about IT stuff 😦

toxic gulch
#

i tried it on eduroam too and it did the same thing ;-;

native dagger
#

hmmm, I'd reach out to your IT department but if this is the issue, be prepared for a perfunctory "No" when you ask to be allowed on the network.

#

I can't even get permission to SSH into a raspberry pi at my work

toxic gulch
#

oof

native dagger
#

Yeah it's a whole thing. IT folks have their domain and they know best, so we mere mortals have to just accept their dictates. To be completely honest I am unable to evaluate threat models and that kind of thing so I just sort of grumble to myself and live with it

#

It's better that I not be able to SSH than some kind of hack thing happen

toxic gulch
#

yeah i guess I'm gonna ask my teammmates if anyone has a wifi hotspot we can connect the board to for demo purposes. thanks for the suggestion

native dagger
#

Sure thing, again I am really a noob about IT stuff, it just jumped out at me as a definite possibility. Super worth reaching out to IT, you may learn the proper way to do it and you may actually get permission. They can only say no

toxic gulch
#

ah but the question is can they get me permission before the first big demo next week

#

should'v ethought about this earlier tbh

native dagger
#

Don't kick yourself too much, things happen.

#

I think most certain is likely getting (and then maybe returning?) a hotspot

#

Might be fastest too, depending on how much IT has on their plate

livid osprey
#

@toxic gulch Depending on what your demo needs, it might make more sense to setup an isolated network with a pc and Wi-Fi router. You could create a dummy site on the laptop, and not have to worry as much about getting on it’s bad side…

north stream
native dagger
#

nice thanks!

#

I don't need super extreme precision right now, I'm focused mostly on getting something done fast. But I'll check that out

toxic gulch
livid osprey
#

Not sure what kind of server you need for a demo, but if it's just a demonstration of data transmission, a TCP connection over a local network should be more than enough.

native dagger
#

Oh they make a voltage output one!

cedar mountain
#

I expect the data would be pretty easy, just reading the current count value, but yeah a little software would be needed.

native dagger
#

Yeah since they have a raw voltage output one I think it'll be easiest to go with that. Thx

toxic gulch
livid osprey
#

Ah, using a specific service like Adafruit IO isn't something that can be simulated...

#

Hotspot would probably be the way to go here.

elder hare
#

Code:
https://www.toptal.com/developers/hastebin/ekayeyiyom.csharp

Error
https://www.toptal.com/developers/hastebin/sukabojugi.yaml

It seems to crash when calling this function

void saveConfigFile()
{
  debug.info("[NETWORK]", "[JSON]", "Saving config");
  StaticJsonDocument<512> json;
  json["HostNameString"] = HostNameString;

  File configFile = SPIFFS.open(JSON_CONFIG_FILE, "w");
  if (!configFile)
  {
    debug.error("[NETWORK]", "[JSON]", "Failed to open config file for writing");
  }

  serializeJsonPretty(json, Serial);
  if (serializeJson(json, configFile) == 0)
  {
    debug.error("[NETWORK]", "[JSON]", "Failed to write to file");
  }
  configFile.close();
}
Hastebin: Send and Save Text or Code Snippets for Free | Toptal®

Hastebin is a free web-based pastebin service for storing and sharing text and code snippets with anyone. Get started now.

Hastebin: Send and Save Text or Code Snippets for Free | Toptal®

Hastebin is a free web-based pastebin service for storing and sharing text and code snippets with anyone. Get started now.

zinc bridge
#

Not sure if this is the correct channel. I have a question about platfomio using the arduino framework programming an ESP32 board.

cedar mountain
zinc bridge
#

So the ./data folder in a PlatformIO puts those files in the board's flash for you access with SPIFFS or other similar library.

#

But what about to PSRAM instead of flash?

#

Loading to it, I mean.

#

There's FS child libraries fro PSRAM, but can I load files directly to it when flashing? Like put all the webserver files there.

coarse crag
#

Hi, I'm trying to connect an SD card to circuit playground (soldered the SPI pins in the back) but it doesn't work

#

what is the best way to test basic SPI connection? and how do I configure the MOSI, MISO, SCK pins ? (I used #define but doesn't seem to work...)

#

Any help would be greatly appreciated 😦

quartz furnace
#

Hello Arduino coding friends 👋🏻

I have a question on how to modify this code to have two instances of “mySwitch. available

This library reads little 315Mhz or 433Mhz remotes

I’d like to have two separate pins one for each frequency and then do the decoding part


RCSwitch mySwitch = RCSwitch();

void setup() {
  Serial.begin(9600);
  mySwitch.enableReceive(0);  // Receiver on interrupt 0 => that is pin #2
}

void loop() {
  if (mySwitch.available()) {
    
    Serial.print("Received ");
    Serial.print( mySwitch.getReceivedValue() );
    Serial.print(" / ");
    Serial.print( mySwitch.getReceivedBitlength() );
    Serial.print("bit ");
    Serial.print("Protocol: ");
    Serial.println( mySwitch.getReceivedProtocol() );

    mySwitch.resetAvailable();
  }
}
#

I do understand there is a possibility that the two separate frequencies could be in close timing and cause adverse problems

My plan is just to let the 1st received have priority and maybe a delay step after for a few microseconds

cedar mountain
#

In theory it should be as simple as creating two objects:```RCSwitch mySwitch1 = RCSwitch();
RCSwitch mySwitch2 = RCSwitch();

void setup() {
Serial.begin(9600);
mySwitch1.enableReceive(0);
mySwitch2.enableReceive(other_pin);
}```

quartz furnace
#

Thanks and the loop part remains unchanged?

#

I don’t have to do a if mySwitch1 and if mySwitch2 breakdown ?

cedar mountain
#

You'd need to check .available() for both of them and do your logic for each.

quartz furnace
#

So a nested if statement ? The general check on “.available() “ and then separate for 1 and 2 ?

#

Or am I reading it wrong and the loop would catch both

#

As is

cedar mountain
#

Not nested, just one after another:if (mySwitch1.available()) { // do switch 1 stuff } if (mySwitch2.available()) { // do switch 2 stuff }

quartz furnace
#

Ahhhh TY!!!

merry torrent
#

hi im using neopixel library for my addressable led, im can make the led fade with some for loops... but cant find a way to control the interval of fade..!! i need a slow fade... can someone help me

cedar mountain
merry torrent
# 
    for (j = 255; j > 0; j--) {
        uint32_t fade = pixels.gamma32(pixels.ColorHSV(colr, j) );
        pixels.fill(fade);
      pixels.show();
    }
    for (j = 0; j < 255; j++) {
        uint32_t fade = pixels.gamma32(pixels.ColorHSV(colr, j) );
       pixels.fill(fade);
      pixels.show();
    }
merry torrent
#

i can understand i should use milliis

#

i just cant find the math logic

cedar mountain
#

For instance, you might do something like:c long start = millis(); long duration = 1000; // 1 second for (j = 0; j < 255; j++) { while (millis() < start + duration * j / 255) {} // pause to slow down loop uint32_t fade = pixels.gamma32(pixels.ColorHSV(colr, j) ); pixels.fill(fade); pixels.show(); }

#

The while loop there introduces a delay that scales with j to make the overall fade take duration milliseconds.

elder hare
north stream
elder hare
north stream
#

You could just take the microsoft approach and consider that a normal part of the startup sequence...

elder hare
#

it is annoying tho and i want to fix it

north stream
#

That is good engineering practice.

pine bramble
# north stream That is good engineering practice.

Could anyone help me with ST25DV16K NFC tag? in the beginning it all works fine as I tried to write information like url and text with an NFC app on my iphone, but then at some point the NFC stops working, it can still recognize it as IOS 15693 type V but when I tried to write it it says the tag is not NDEF compliant. So I guess i made it corrupted somehow, is there anyway to fix it?

north stream
pine bramble
north stream
#

Do you have a low level tag reader board like a PN532?

pine bramble
#

Any it all works fine in the beginning

solemn cliff
#

does the NFC app have some advanced formatting option or something ?

pine bramble
#

Yes!

#

I can still get these information from an app, but can’t write anymore

#

My guess is these information are deleted? Any one know how to put it back?

IMG_2806.png
#

Or maybe I lock it somehow?

solemn cliff
#

well I don't know how that works

#

you might be able to reset it from the I2C side by using the demo code

pine bramble
solemn cliff
pine bramble
solemn cliff
#

hopefully it should put it back into a reasonable state. I believe it comes preinstalled with adafruit's URL in it ? that should do the same thing with a different URL

#

unless something went wrong and its configured in a weird way, in which case we can try to find if there are "factory reset" instructions somewhere

pine bramble
#

Yeah I’m the beginning I write it to different text and url it all works

zinc bridge
#

Is there a way to load to ESP32 PSRAM when I flash a board, instead of storing files in normal flash?

cedar mountain
zinc bridge
#

I guess I was thinking about it wrong.

native dagger
#

Do folks generally like PlatformIO over Arduino IDE? Any major pitfalls in switching to PlaftormIO?

north stream
#

I suspect it's mostly personal preference - Platform IO didn't appeal to me so I stuck with Arduino

native dagger
#

OK, you wouldn't necessarily say there are any major upsides to either?

odd fjord
native dagger
#

Hmm, I have some experience with Arduino IDE and I was hoping there was something...better? I'm spoiled for python IDEs

odd fjord
#

I’m not a big IDE fan. I prefer to write code in nano…

native dagger
#

hehe, one of those!

odd fjord
#

🤓

native dagger
#

Do you just run the compiler from the cmd line then?

odd fjord
#

Given the choice, but for Arduino I do use the IDE

native dagger
#

Is there no choice?

#

I'm going to miss the REPL, I can already feel it

solemn cliff
#

I use arduino-cli when I can, so as not to launch the IDE

#

or I used to, my arduino code has been running without update for a while

native dagger
#

Hmm, I'll look into that

blazing kindle
#

Adding qwicc to feather.

Project goals

1.    Exam room status light
2.    small box with switches that have a LED at the bottom. (see hyperlink product #1)
3.    when button 1 is hit it lights up. When button two is hit button one turns off button two turns on.
4.    Will need 5 total devices. Thinking using RF to complete the goal (see hyperlink product #2)
5.    Devices all communicate together. Partly why I like the RF signal idea. As long as the signal is strong enough. Should trigger the light on all 5 devices. Example. Button 1 pushed and lights up on device 1-5 when pressed on device 1. Device 2 can hit second button and all five devices change to second light and turn off light 1.
6.    Wall power or rechargeable lipo

https://www.adafruit.com/product/3077https://www.adafruit.com/product/4980

Is it possible to use the qwicc connector on the neo keys with the feather? I’m not sure how you’d add those with the current build of the feather?

rough torrent
native dagger
#

Hmm ok, I'll try with Arduino IDE again and see how much I hate it

rough torrent
#

Apparently, Arduino IDE 2 will solve autocomplete and other things, but didn't look into it that much yet, since I'm pretty sure they are still on release candidates

native dagger
#

Hmm yeah better to stick to something with a solid support history

rough torrent
#

PlatformIO is still pretty good as for every Arduino compatible board in PlatformIO there is always Arduino framework support, and most of the libraries will work great. I've gotten great results with the Arduino Uno, Adafruit PyGamer, and ESP32. (most popular with PlatformIO)

solemn cliff
#

yeah I use arduino-cli because I prefer using my own editor too, and I'd rather have the build separate from the editor. Though I couldn't care less about code completion personally so I don't know how you'd support that

north stream
north stream
native dagger
#

Heya, we're generally not supposed to cross post our issues. There are exceptions, but not a ton.

proven marsh
#

oh i see, my apologies. How do i rectify it?

native dagger
#

You got it! It's not a big deal, just letting you know

proven marsh
#

There we go. Its on a Pi anyhow. I just figured the overall theory would be the same. But I understand the rules.

native dagger
#

Hopefully someone can help!

proven marsh
#

Thanks!

native dagger
#

Anyone know if there are any issues using RS485 in arduino on the QTPY SAMD21? I believe it's inactive for CP.

gilded swift
#

i had thought RS485 was usually 12V (with some exceptions of course)

native dagger
#

For testing I will be. In practice I'll be using the MAX 485 chip.

I am unaware that it's 12V...

gilded swift
#

quick search says -7-12V swings

#

MAX485 should work great

#

I think it has a 3.3V safe interface

#

yeah, can confirm

#

just looked

#

I don't think there would be an issue. looks like there is an arduino library

native dagger
#

Yeah I haven't decided on 3.3V vs 5V. I'm using an ethernet cable so I was considering using a 12V signal anyways and powering my daughter board that way. But I need 12V up to 3.4A on that board so I may as well use a separate source

#

Thanks for your help

fickle gyro
#

With Arduino framework I can make independent PWM on PD5 and PD6
And I want to recreate it myself.
These pins only use 8-bit timer0

#

And I can't figure out how to make them work at the same time with different duty cycles

# 
  DDRD |= (1<<LEFT_DIR) | (1<<LEFT_POW) | (1<<RIGHT_DIR) | (1<<RIGHT_POW);
  //PWM
  TCCR0A = (1<<COM0A1) | (1<<COM0B1) | (1<<WGM01) | (1<<WGM00); //(1<<COM0B0)?
  TCCR0B = (1<<CS21) | (1<<CS20);
  OCR0A = 0;
  OCR0B = 0;```
cedar mountain
#

I think you'd just want different values of OCR0A and OCR0B.

elfin thorn
#

Hi y'all! I'm working on the Clue for a BLE Central. The code I'm using works, but I want it to display the data the Clue is connected to (namely, an ItsyBitsy RNF board with an SGP30). I want it to pull the data every so many seconds (or whatever time period) and update the screen. I was thinking to replace the word, "Succeeded" with the data stream (line 309).

Here is the code:

📎 message.txt
fickle gyro
#

ok sorta works

#

Hmm they say that Arduino framework sets the prescaler on 64 and other things

#

Does it like inject some setup things whenever it's added as header file?

#

I mean #include <Arduino.h>

cedar mountain
#

It would probably be part of the startup code linked in to the compiled firmware rather than in the header file per se.

woeful igloo
#

trying to set up arduino IDE, why does the port menu in tools show up as blank?

#

and each time i plug it in, gives me the "usb device not recognized"

#

and i also thought itd be worth mentioning that whenever i loosen the usb port connected to my pc, the green light shows up

#

but the 'L' light keeps blinking

#

im using an uno r3

fickle gyro
#

@woeful igloo bad usb?
Maybe try different one
If it is the original uno then it should constantly show that it has power via green LED

#

And i guess it has blinking program uploaded so it should blink blue LED

woeful igloo
#

my arduino came with a slightly broken usb cable, so ill buy a new one when i get the chance to

barren sundial
#

I have an old project that uses a trinket. I have updated the arduiino ide to 1.8.19 (previous was 1.8.7). I have updated all the board packages. When I go to upload, I have tried both the Upload and Upload using programmer. Both seem to work but I get an error after programming:
avrdude: error: usbtiny_receive: usb_control_msg: sending control message failed, win error: a device attached to the system is not functioning. (expected 4, got -5)
Is this a false negative and I can safely ignore this?

#

I am planning on updating this project with a trinket MO eventually..

barren sundial
#

I have a trinket MO, under arduino ide how do I switch the trinket to usb mode and not FTDI? I have an option to select this in the menu but it does not work??

barren sundial
#

I updated the trinket MO to the latest 3.7.0 Bootloader. Now I get only a single green led and it comes up in FEATHERBOOT mode. Still cannot load even the simple blink to the board using the arduino ide. This was so simple using the older trinket and previous arduino ide. Arghhh!!!!

#

This is now the error msg when i try to upload the blink sketch

#

Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Pro Trinket 3V/12MHz (FTDI)"

Sketch uses 968 bytes (3%) of program storage space. Maximum is 28672 bytes.

Global variables use 9 bytes of dynamic memory.

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x94

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x94

Problem uploading to board. See https://support.arduino.cc/hc/en-us/sections/360003198300 for suggestions.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

#

And no i have no plans on using python ever, I just want this to work with Arduino...period

north stream
barren sundial
#

ok got it to work..

#

You might want to update the docs.

leaden walrus
# 
Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Pro Trinket 3V/12MHz (FTDI)"

The Trinket M0 is very different than the older ATtiny based Trinket.

#

it's a totally different BSP. once installed, should have board option for Trinket M0

barren sundial
#

there are two trinket MO in the boards menu one under Adafruit and one under Adafruit SAMD the one under SAMD works.

leaden walrus
#

are you sure it's trinket M0 under both?

barren sundial
#

Also the current 3.7.0 Bootloader does not have the pretty lights. It just has the green LED and no others are lit. It does go into bootloader mode when u click the button 2x. Also the blink sketch does not seem to work? No blinking led?

#

Pro Trinket 3v and 5V under Adafuit (one usb and one FTDI). The ftdi one even recognizes the board

leaden walrus
#

those are totally different boards

barren sundial
#

under adafruit SMD it has adafruit Fetaher Pro (SAMD21)

#

It is confusing though .. Feather Pro vs Pro Feather? And the fact that the one under Adafruit FTDI recognizes the board.

leaden walrus
barren sundial
#

Does the 3.7.0 BL not have the leds ? Or am i missing something?

#

Yes I have the Fetaher Mo

#

MO

leaden walrus
#

a feather would be different than the product linked above

#

can you link to product page for the board you are using?

barren sundial
#

It is a replacement on a prohect I have an older trinket in (led goggles)

#

Trinket MO

leaden walrus
#

ok, that's not a feather

#

so not sure what board you have?

barren sundial
#

I have the trinket MO that is where i got confused

leaden walrus
#

the Trinket M0 uses a totally different processor than the older Trinket

barren sundial
#

I need also to update the BL to the trinket MO one ...

leaden walrus
#

so requires a different board support package (BSP)

#

older Trinket was AVR

#

newer is ARM

#

the guide here covers the Arduino IDE setup for Trinket M0

barren sundial
#

Thanks..

#

Does the newerBL not turn on the multicolor led? I flashed the correct one now and have the blink sketch installed.

#

Or was that the python doing the multicolor led stuff

leaden walrus
#

the bootloader (UF2) on the Trinket M0 is also very different than the older one

#

i don't think the bootloader does any multicolor action on the LED

#

only green for "USB is good" or red for "USB is bad"

#

and you should see a folder with BOOT in the name show up when in bootloader mode

solemn cliff
#

if you want your code to use the RGB LED, you need to write code that uses the RGB LED
in the Arduino IDE if you install the adafruit dotstar library, then go to Examples > Adafruit Dotstar > ItsyBitsyM4OnBoard that's a demo of a rainbow cycle, you need to change the pins to match the trinket

barren sundial
#

works now.. nice pink led in middle of board.

leaden walrus
#

was it doing some kind of multicolor action when you first got the Trinket M0?

barren sundial
#

BTW: I still have an active project using a trinket.. This trinkey MO is replacing it.

#

When I go to uplaod on the older trinket I get an error after the upload
avrdude: error: usbtiny_receive: usb_control_msg: sending control message failed, win error: a device attached to the system is not functioning. (expected 4, got -5)
Is this a false negative and I can safely ignore this?

#

yes it was now it is again..

leaden walrus
#

the Trinket M0 ships with CircuitPython installed, you were probably seeing a shipped demo

#

uploading an Arduino sketch overwrote that

barren sundial
#

ok

leaden walrus
#

you can go back to CircuitPython if you want, anytime, or just stick with Arduino

barren sundial
#

Any suggestions on the older trinket.. I still need this to work until I can replace it. But I am unsure if the board is getting programmed with arduino IDE ..

leaden walrus
#

but in general, can forget about the original behavior. it was nothing special. just something cute it would do out of the box.

#

are you still able to successfully upload on the older trinket? despite the message?

#

try uploading something like blink, and change the blink rate

barren sundial
#

i think so.. I have not tried changing the program but it still works after I upload the same one... so maybe I can just ignore this for now...

#

i did not MO and that worked..

#

I guess I can try this on trinket if it is not programming them no harm .. if it is I can reset it back by programming it with old code.

leaden walrus
#

the older trinket is now considered deprecated, there's a warning on the product pages

# 
Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it.
#

if you have a setup that can still program it though, then you should be OK

#

were you doing anything that was AVR specific with the older trinket?

barren sundial
#

Yeah looks like that error is a false negative.

#

Programmed blink and it blinked led .. then reprogrammed original sketch and that worked.

#

It was running some leds .. the neopixels with a BLE as a uart to send in commands to change colors,etc.. via app on phone. Plus a local switch to change the display type.

#

It uses bitbang over usbtiny?

leaden walrus
#

if the code was just using basic Arduino things, then should translate to the M0 OK, with minor changes for different pins

#

older trinket was totally bitbang on digital pins, the newer trinket M0 uses an actual USB peripheral interface

barren sundial
#

I chose the MO becuase it has smae pinout etc.. should work just fine. It is the led goggles you sell. But with added BLE and also local switch to change the pattern on the goggles. Once I have it all up and running on MO I plan on putting schematic and all in my github project.

#

ahh

#

Currently just sketch is in github

#

been awhile since i touched this project.. getting back on it after a long hiatus for other things..

#

ty for your help..

leaden walrus
#

you'll probably want to switch to hardware serial on the Trinket M0

#

it's Serial1 with, 3=RX and 4=TX

elfin thorn
#

Hi y'all! I'm working on my Clue using the following sketch:

https://learn.adafruit.com/bluefruit-nrf52-feather-learning-guide/bleclientuart

But I'm getting the following error:

C:\Users\brian\Documents\Arduino\central_pairing\central_pairing.ino: In function 'void connect_callback(uint16_t)':
central_pairing:110:23: error: 'class BLECentral' has no member named 'disconnect'; did you mean 'connect'?
110 | Bluefruit.Central.disconnect(conn_handle);
| ^~~~~~~~~~
| connect
Multiple libraries were found for "Adafruit_TinyUSB.h"
Used: C:\Users\brian\Documents\Arduino\libraries\Adafruit_TinyUSB_Library
Not used: C:\Users\brian\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\1.3.0\libraries\Adafruit_TinyUSB_Arduino
Multiple libraries were found for "Adafruit_nRFCrypto.h"
Used: C:\Users\brian\Documents\Arduino\libraries\Adafruit_nRFCrypto
Not used: C:\Users\brian\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\1.3.0\libraries\Adafruit_nRFCrypto
exit status 1
'class BLECentral' has no member named 'disconnect'; did you mean 'connect'?

Adafruit Learning System
Bluefruit nRF52 Feather Learning Guide

Get started now with our most powerful Bluefruit board yet!

#

Ah, I see that it has an API above the code, but where do I put that, thanks?

charred sonnet
#

so I have no idea what the deal with the esp32 i2s->dac is. I'm just testing things out and it seems to kind of work, but mysterious things keep happening. Here is one example. I've attached some code I'm running and I'm looking at the output on my scope, but it is very mysterious. The voltages go like 0V, 200mV, 400mV, 1700mV, 900mV. The times of all of these pulses seem OK, but the voltages are way wrong. If anyone can see something stupid I'm doing wrong, I'd appreciate the help!

📎 sad_code.ino
elfin thorn
#

So, I found this line of code (line 205) and I see my gas sensor data streaming through...

Serial.print( (char) uart_svc.read() );

But if I try to put it in with something like this in line 308

tft->print( (char) uart_svc.read() );

I get the following error:
Multiple libraries were found for "Adafruit_TinyUSB.h"
Used: C:\Users\brian\Documents\Arduino\libraries\Adafruit_TinyUSB_Library
Not used: C:\Users\brian\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\1.3.0\libraries\Adafruit_TinyUSB_Arduino
Multiple libraries were found for "Adafruit_nRFCrypto.h"
Used: C:\Users\brian\Documents\Arduino\libraries\Adafruit_nRFCrypto
Not used: C:\Users\brian\AppData\Local\Arduino15\packages\adafruit\hardware\nrf52\1.3.0\libraries\Adafruit_nRFCrypto
Multiple libraries were found for "Adafruit_ImageReader.h"
Used: C:\Users\brian\Documents\Arduino\libraries\Adafruit_ImageReader_Library
Not used: C:\Users\brian\Documents\Arduino\libraries\arduino_92587
exit status 1
'uart_svc' was not declared in this scope

cedar mountain
#

The final line:'uart_svc' was not declared in this scopelooks to be the real error. Line 205 and line 308 have different visibility of that variable for some reason.

elfin thorn
#

THanks @cedar mountain ... how do I get that serial data to print on the screen?

cedar mountain
#

Maybe add the tft->print() call right at the same place in the code it's printing to the Serial monitor?

elfin thorn
#

I tried that first but didn't work... Let me try again.

cedar mountain
#

Note that you wouldn't want to read from the UART twice, just read it once and then output the same data in both places.

elfin thorn
#

I'll have to try that tomorrow. Family time. 😦

#

I appreciate your help! I'll work on this in the AM!

north stream
rugged plinth
# cedar mountain I'm not sure what the actual problem you're having is, but it's a little weird t...

Alright I am opening the file in void setup() but writing more data to the flash and I'm still having the same issue any idea what the reason for it could be? With my previous code the barometer readings are right.

  if (millis() - prev_millis >= 20){ // 50 hertz
    prev_millis = millis();

    myFile.print(kalmanaxb);
    myFile.print(", ");
    myFile.print(kalmanaxg);
    myFile.print(", ");
    myFile.print(kalmanay);
    myFile.print(", ");
    myFile.print(kalmanaz);
    myFile.print(", ");
     
    // some more data  
    myFile.println();
    myFile.flush();
  }```
elfin thorn
#

I get good data from the serial monitor
I can successfully add the following lines to the top:


  Adafruit_Arcada arcada;
  Adafruit_SPITFT* tft; ```
unknown.png
#

Then I change from line 80 to 87:

  tft->setTextColor(ARCADA_WHITE);
  tft->setTextSize(4);
  while ( uart_svc.available() )
  {
  tft->print( (char) uart_svc.read() );
  tft->setTextColor(ARCADA_WHITE);
  tft->setTextSize(4); ```

No errors, but the screen is blank. Also, of course, nothing shows up in Serial Monitor.
elfin thorn
#

And if I add the following from line 171:

  tft->print("[RX]: ");
  tft->setTextColor(ARCADA_GREEN);
  tft->setTextSize(4);
#endif```

I get no errors, still prints to Serial, but nothing on the screen. It seems I'm heading in the right direction, but "I don't know which way I'm going, I don't know which way to go..."
charred sonnet
#

@north stream thanks for the suggestions... still messing with it

cedar mountain
charred sonnet
#

looks like

  0,0,8,8,16,16,24,24,32,32,40,40,48,48,56,56,
  32,32,32,32,40,40,40,40,48,48,48,48,56,56,56,56
}; ``` does the weird stepping on the first half, but not the second... I guess I'm not understanding something about how each byte is passed along
elfin thorn
#

@cedar mountainI'm integrating the Arcada simplest sketch - very slowly - to see what works and what doesn't...

#

Yeah, I'm utterly baffled... When I paste the following in the beginning of the BLE sketch (from the Arcada Simplest), I get errors:

  Serial.begin(9600);
  Serial.print("Hello! Arcada TFT Test");
  if (!arcada.arcadaBegin()) {
    Serial.print("Failed to begin");
    while (1) delay(10);
  }
  arcada.displayBegin();
)

void loop()```

C:\Users\brian\AppData\Local\Temp\arduino_modified_sketch_28121\central_bleuart.ino: In function 'void setup()':
central_bleuart:14:1: error: expected primary-expression before ')' token
   14 | )
      | ^
central_bleuart:22:1: error: a function-definition is not allowed here before '{' token
   22 | {
      | ^
central_bleuart:70:1: error: a function-definition is not allowed here before '{' token
   70 | {
      | ^
central_bleuart:91:1: error: a function-definition is not allowed here before '{' token
   91 | {
      | ^
central_bleuart:158:1: error: a function-definition is not allowed here before '{' token
  158 | {
      | ^
📎 message.txt 📎 message.txt
elfin thorn
topaz compass
#

Looks like the last line of your paste has a ) instead of a } ?

elfin thorn
#

Ok... let me go get some lunch and I'll get back to this in a while.

elfin thorn
#

Well, I tried unsuccessfully to integrate any part of the Arcada commands to the BLE Central sketch. If the the contents of the last void loop are removed, there are no observable consequences. So I tried putting Arcada commands in various arrangements inside, but to no avail. I'm a solid newbie, so I'm literally brute force coding here.

tawny mural
#

i can control a neopixel ring with a qt py right?

#

nvm i got it

unborn frost
#

Hello, I am working with an esp32 and 2 mg996r servo motors. I am using a ps3 controller over Bluetooth to control the motors and am using the ESP32Servo library. Everything is working as expected except for the constant brownouts I am experiencing. Sometimes before I even move the motors the system has a brownout and restarts. Can anyone suggest a cause of this? Thanks

cedar mountain
unborn frost
#

That was my first thought. I switched to a 3a wall power brick and I even used a usb current monitor. it never exceeded 1a and there were no noticeable spikes

cedar mountain
#

It may help to add some more capacitance near the ESP32, if there are some short-duration brownouts that the current monitor isn't catching.

unborn frost
#

So try adding a capacitor on power and ground?

cedar mountain
#

Yes, physically close to the ESP32.

unborn frost
#

I dont know much about capacitors. I have a bunch of different ones. Should I use something specific? Or will any do?

cedar mountain
#

Any will generally do. The bigger the better, just to see if it makes a difference, since I'm not sure this is actually the problem or the right solution for it.

unborn frost
#

Got it

#

So I added a 470uF capacitor and it did still brownout but it lasted significantly longer than it did before. Do you think a bigger capacitor would solve the issue all together?

cedar mountain
#

Possibly, though it's kind of a band-aid approach. You might want some more principled type of filtering on the power rails to isolate the ESP32 from any spikes generated by the servos... stuff like ferrites, etc. But I'm not an expert there. If you have the option, a separate smaller power supply for the ESP32 would likely solve your issues.

unborn frost
#

your saying power the esp and the servos separately?

cedar mountain
#

Exactly. You'd want to tie the grounds together, but keeping the power separate would probably help.

unborn frost
#

Thanks for your help!

elder hare
#

So back to this problem

Qt Side:

QJsonDocument :  "{\"paletteNew\":[0,255,0,0,32,171,85,0,64,171,171,0,96,0,255,0,128,0,171,85,160,0,0,255,192,85,0,171,224,171,0,85,255,255,0,0]}"

ESP32 Side - Variables:

    CRGBPalette256 PaletteCurrent;  // This is the current palette displaying on the strip
    CRGBPalette256 PaletteBuffer;   // This would hold the palette coming in from the socket from Qt App side

ESP32 Side - Function to copy

void Settings::copyPaletteArray(JsonArray array)
{
    int i = 0;
    int arraySize =  array.size();

    memset(PaletteCurrent, 0, sizeof(PaletteCurrent));
    
    for(JsonVariant v : array)
    {
        if (i >= arraySize) break;
        {
            auto x = v.as<byte>();
            PaletteBuffer[i++] = x;
        }
    }
    PaletteCurrent = PaletteBuffer;
}

ESP32 Side - Websocket part

        if ( inData.containsKey("paletteNew") )
        {
          settings[selectedstrip].copyPaletteArray(inData["paletteNew"].as<JsonArray>());

          // Check array size to be sure i get everything (and it is A-okay)
          JsonVariant array = inData["paletteNew"].as<JsonArray>();
          size_t size = array.size();
          Serial.println(size);
        }

so what am i doing wrong here? the palette on the strip dont update :/

severe latch
#

Hi all.
my feather nRF52840 is no longer responding. It is connected now via USB cable to my laptop ( with CHG led blinking yellow super fast).

#

I tried to double click on the reset button several time but nothing seems to be happening

#

can I bring it back to life ? 😖

severe latch
#

i have so many things connected externally to my feather, probably some short circuit happened ...

rugged plinth
hushed saffron
#

Hi, why Adafruit sensor (DTH11) lib don't work? I'm installed it on platformio with unified sensor lib.

void loop() {
  server.handleClient();
  float t = dht.readTemperature();
  Serial.println("test");
}

In setup i have dht.begin(), but in loop this println dont working (server.handleClient() works)

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);

  Serial.begin(9600);

  dht.begin();

  WiFi.begin(ssid, password);
  Serial.print("Connecting server ");
  while(WiFi.status()!=WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.println("");
  Serial.print("IP Adress: ");
  Serial.print(WiFi.localIP());

  server.on("/", HTTP_GET, landing);
  server.on("/LED", HTTP_POST, led);
  server.begin();
}```

Oh, this Serial.print connecting don't works too
arduino serial
unknown.png
#

Platform io serial

unknown.png
livid osprey
#

It looks as if you have some configuration problem with your serial port. Verify your connections and your serial settings are what they're supposed to be?

#

Also, what board are you using?

hushed saffron
north stream
livid osprey
#

Also how is your DHT sensor defined?

urban tapir
#

Question - I'm using an Adafruit feather m4 CAN, talking to it from Linux with c++ and arduino-cli (not circuitpython), and I don't want the feather to automount a filesystem (or especially, have that filesystem folder show on my Linux desktop) when I plug it in or upload or reset. How do I turn off the automount? I assume I can do it in the Linux udev system, but I was hoping to do it on the Feather.

hushed saffron
wraith current
#

@urban tapirisn't it the circuitpython bootloader that mounts the drive ? flashing the m4 with an arduino sketch should wipeout the bootloader.

elder hare
#

anyone using platformIO here? i cant get the monitor_filters = esp32_exception_decoder to work :S

elder hare
#

got it working

#

My network code:
https://www.toptal.com/developers/hastebin/onahecarej.php

Crash decoded:
https://www.toptal.com/developers/hastebin/avadidibik.cpp

can someone help me, i cant see what is causing the problem and where :/

Hastebin: Send and Save Text or Code Snippets for Free | Toptal®

Hastebin is a free web-based pastebin service for storing and sharing text and code snippets with anyone. Get started now.

Hastebin: Send and Save Text or Code Snippets for Free | Toptal®

Hastebin is a free web-based pastebin service for storing and sharing text and code snippets with anyone. Get started now.

cedar mountain
#

The "crash decoded" link is a duplicate of your code.

elder hare
#

oh s*** 😛 yea

#

here

#

This

(inlined by) loop() at src/main.cpp:280

is this in main.cpp

void loop()
{
  drd->loop();
}

just FYI

cedar mountain
#

I had a quick look, but it looks like the problem is deep inside the SPI flash driver, so I'm not sure what's going on, I'm afraid.

elder hare
#

:/

#

the only thing i know is the crashing started after adding WifiManager and DoubleDetecting libs

#

and the code ofcourse

elder hare
#

@cedar mountain hmmm i disabled everything ESP_DoubleResetDetector.h related and now i have restarted the ESP32 9 times without 1 crash :S

elder hare
#

yea it was something about the ESP_DoubleResetDetector

elder hare
#

hmmmm FastLED question

virtual void draw(CLEDController& c)
{
    CRGB* leds = c.leds();
    int size = c.size();

    fadeToBlackBy(leds, size, PatternFadeAmount);
    int i = random8(0, size);
    DrawPixels(c, i, 1, PaletteMode(c, i, PatternBrightness));
}

this pattern is called "Twinkle" it gets a random number and then "pulses" that pixel on and off (with a nice fade) but hmm how could i slow it down! right now as it stands every pixel flickers VERY fast and alot of them :S

wraith current
#

@elder harebut how did you get the platformio exception decoder filter to work ?

twilit girder
#

hi, i'm trying to figure out what kind of connector is on this component i have

#

it's really small, four wire

native dagger
#

Do you know the component? That looks like a JST-SH (also known as a QWIIC/Stemma QT) connector.

twilit girder
#

um, i might have one of those around

#

i could try then

#

i don't know what it is, it's a camera

solemn cliff
#

no name ? no link ? do you have a non blurry picture of the whole boards ?

twilit girder
twilit girder
solemn cliff
#

the one plug with the USB adapter looks like a JST SH, but the other ones look smaller

elder hare
#

So i have this Twinkle pattern that fades in and out random pixels on the strip

class Twinkle : public Pattern
{
public:
    virtual void draw(CLEDController& c)
    {
        CRGB* leds = c.leds();
        int size = c.size();
        
        int i = random8(0, size);
        fadeToBlackBy(leds, size, PatternFadeAmount);            
        DrawPixels(c, i, 1, PaletteMode(c, i, PatternBrightness));
    }

    virtual void update(CLEDController& c)
    {
        if ( millis() - PatternUpdate >= PatternDelay )
        {
            if ( PatternWrapAround == YES && PatternDirection == FORWARD )
            {
                PatternPosition += 0.1f;

                if ( PatternPosition >= 3 )
                    PatternPosition = 0.0f;
            }
            PatternUpdate = millis();
        }
    }
};

But how can i controll the amount of "twinkles" at any time + the speed using PatternPosition?

elder hare
#

got it working 🙂

old kelp
#

Anyone every try doing path finding in a 2d array in Arduino?

urban tapir
# wraith current <@!763884144983408650>isn't it the circuitpython bootloader that mounts the driv...

@wraith current Thank you for your answer. I am not familiar with the workings of the bootloader. If my sketch is in flash and I single-click reset or power cycle, my sketch restarts, with no automount. If I run arduino-cli upload, or if I double-click the reset button, I get the automount.

While I might like the automount feature as an option, I want to be able to control if it happens or not when I am uploading. It just seems strange for me to see a Linux automount happen while I am uploading my sketch.

native dagger
#

Is there a way to detect, on boards like the ESP32-S2, if USB is connected vs if just power is plugged in on the same power rail that USB services?

dusk dune
#

Hello, I am getting this quite weird error when trying to import an adafruit library, adafruit_BMP3XX, with arduino-esp32 version 2.0.2 and for some odd reason I am getting errors when trying to import the BLE library and that at the same time

#

It is giving me variable undefined errors from the BLE library but for whatever reason it only does when I include the bmp3xx library

#

Specifically the bmp3_defs.h

native dagger
#

Does adafruit make a library for WS2811 LEDs?

#

Ah I see, yes they do!

waxen hawk
#

hi I wanted to try programming a gui on lcd display connected to arduino. Which python library do you suggest to use for the gui?

pyqt or the tkinterlab? Which one would look better and which one is it easier to develop?

rough torrent
#

You cannot use Python to make GUIs on Arduinos

#

But I'm pretty sure PyQt have embedded options

formal crane
#

hi guys - does Data out need to be connected with Ground for neopixels?

odd fjord
formal crane
#

thank you!!

formal crane
#

i want to have an arch of perceived determined length, rotating around the ring smoothly (i.e. not** jumping from one pixel to another, but creeping/ fading the edges smoothly**)

#

what's the best way of implementing this?

#

for illustration

unknown.png
#

the key is that creeping movement (i want this to advance very slowly and avoid the jerkyness)

livid osprey
formal crane
#

ok i'm getting some results

#

but the code breaks when i get to the end of the loop...

livid osprey
formal crane
#

this must be it @livid osprey !! i still can't figure out where i should make your modification

livid osprey
#

Anytime you need to make changes to the color of LED (first+len), really.

#

If you try to adjust the color of a pixel outside of your NUMPIXEL range, you'll see your code stop working the way it was intended.

formal crane
#

ah @livid osprey haha i feel like i'm making the code worse and worse with every try

livid osprey
#

Hmm, I can spare a bit of time I guess. One second.

formal crane
#

i'm grateful. there also might be a more efficient way than i'm doing it altogether

#

like i'm going through the whole array when just the ends change

livid osprey
#

@formal crane So your issue is definitely line 40: if (led>=first and led<first+len) I changed it to if ((led>=first and led<(first+len)%NUM_LEDS) or led<(first+len)) to add wrapping compatibility.

formal crane
#

this is amazing, i'm really grateful for your time and effort with this - you're a good human @livid osprey !!

#

and i can see that the mod is even in the first initiation

#

man i'm so happy this is working!! is there any other way you'd have set it up to be easier to read/ execute? as i was going through that, i could imagine you must have had a hard time interpreting what i tried to do

livid osprey
#

TIL, Wokwi is bait.

formal crane
#

@livid osprey you're fantastic!

silent coral
#

Hi, i have an arduino Nano from AZ delivery, it used to work fine for some time but now i can't upload sketches to it and it's not even detected by my computer. Also the TX led turns red when it's connected. Do you think it may be something that got on it and made a short circuit ?

north stream
silent coral
livid osprey
waxen hawk
#

Hi, could help me with this confusion. I am working with a charge controller and I am trying to figure out how to communicate with arduino board. However, renogy claims to be a rs232 communication.

You can see that on lower left of the first picture below. However, the port shape differs from typical rs232 port for computers.

Is the renogy port actually rs232 or are they creating their own port that is different from other standard ports

unknown.png unknown.png
north stream
waxen hawk
# north stream Usually ports like that are RS-232 voltage levels, but a nonstandard connector (...

Thanks. This will aid in my investigation. According to a manual, it is supposed to connect to a bluetooth module. However, this is rj12. Conflicting information online ... and only pics ...
https://www.amazon.com/Renogy-Bluetooth-Module-Communication-Controllers/dp/B0894SDTSL?th=1

Renogy Bluetooth Module RJ12 Communication Port Compatible Rover/Wa...

The Renogy BT-1 is a great addition to any compatible Renogy solar charge controllers. Powered by its RJ12 communication port, the BT-1 provides wireless monitoring of system data through the Renogy DC Home smart phone App. And allows users to change parameters when using the Renogy DC Home App.

north stream
#

It's not really RJ12, it just uses the same connector as RJ12 does (which is the 6P6C).

waxen hawk
north stream
#

The RJ45 connector is 8P8C and won't fit

waxen hawk
#

rip. is there any commercial adaptors or do I got to make my own i guess?

#

lol am i forced to buy their bluetooth module

cedar mountain
#

I mean, you can just buy an RJ12 cable and cut it open to get at the wires.

waxen hawk
north stream
#

I wouldn't expect to find an off-the-shelf one with the correct pinout. Radio Shack used to sell some nice configurable ones.